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class="profile--tab_heading_container">Papers by Debora Pereira</h3></div><div class="js-work-strip profile--work_container" data-work-id="112049930"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/112049930/Effects_of_indole_3_acetic_acid_IAA_jasmonic_acid_JA_and_gibberellic_acid_GA3_on_the_direct_regeneration_of_Gelidium_floridanum_explants"><img alt="Research paper thumbnail of Effects of indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA3) on the direct regeneration of Gelidium floridanum explants" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/112049930/Effects_of_indole_3_acetic_acid_IAA_jasmonic_acid_JA_and_gibberellic_acid_GA3_on_the_direct_regeneration_of_Gelidium_floridanum_explants">Effects of indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA3) on the direct regeneration of Gelidium floridanum explants</a></div><div class="wp-workCard_item"><span>Journal of Applied Phycology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Gelidium floridanum is a red seaweed of economic importance as it yields high-quality agar which ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Gelidium floridanum is a red seaweed of economic importance as it yields high-quality agar which is extracted exclusively from material harvested from natural beds. Phytoregulators have not been explored in macroalgal culture as a probable alternative for large-scale farming of seaweed. Therefore, this study aimed to analyze the direct regeneration of G. floridanum explants using indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA). Explants (5 mm) were treated in liquid medium supplemented with IAA (0.57, 5.7, and 57 μM), JA (2, 4, and 8 mM), and GA (29, 43, and 58 mM) for 48 h and then further cultivated for 20 days. To observe the morphology and formation of new axes, micrographs were taken on the 5th day of culture using stereoscopic microscopy, and explants were processed for light and scanning electron microscopy. On the 20th day micrographs were obtained through stereoscopic microscopy for a final count of formed axes. After 5 days the formation of upright axes was greater and with a greater average size in the 2 and 4 mM JA treatments and floridean starch grains accumulated at the base, not being observed in the apical region. After 20 days the formation of new explants was higher in all treatments with IAA. We conclude that the direct regeneration of G. floridanum explants occurs from the medullary cells and starts in the first week of culture. Among the phytoregulators tested, JA contributed to the earlier formation of the upright axes, but after 20 days, IAA proved to be more efficient in the formation and size of these axes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049930"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049930"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049930; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); 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$a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049928"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate"><img alt="Research paper thumbnail of Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate" class="work-thumbnail" src="https://attachments.academia-assets.com/109401295/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate">Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate</a></div><div class="wp-workCard_item"><span>Acta Physiologiae Plantarum</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The abiotic and biotic factors of the environments are constantly changing, making sessile organi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The abiotic and biotic factors of the environments are constantly changing, making sessile organisms, such as macroalgae, need to adjust to the given location. Two abiotic factors that change a lot are the nitrate (NO 3 −) concentration, thanks to the release of untreated sewage directly into the sea, and high irradiance due to the decrease in the ozone layer (O 3). The goal of this study is to understand if the quantity of NO 3 − influences the growth rate, ultrastructure, concentration, and autofluorescence of photosynthetic pigments, and concentration secondary and antioxidant metabolites of the algae Pyropia acanthophora var. brasiliensis exposed to ultraviolet radiation (UVR). Experiments with the algae were carried out with exposure to 0, 25, 50, and 100 mM of NO 3 − and PAB (= PAR + UVAR + UVBR) for 3 h a day for a period of 7 days, all after an acclimatization of 7 days. In samples exposed to UVR, there was an increase in antioxidant metabolites, while the highest concentrations of total soluble sugars and starch were found in the samples exposed to PAB [0]. High growth rates were observed in samples cultured with NO 3 − without UVR. In samples exposed to UVR, a decrease in the growth rates occurred, but the NO 3 − contributed to maintain the positive growth rates. This samples showed no alterations in the structure of the thylakoids of chloroplasts and there was no decrease in their autofluorescence. The presence of different concentrations of NO 3 − in the culture favored the production of photosynthetic pigments and the production of phenolic compounds, contributing to minimize the effects of ultraviolet radiation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5b3767a2fae1d1feac394ebe51f4beed" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401295,"asset_id":112049928,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401295/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049928"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049928"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049928; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5b3767a2fae1d1feac394ebe51f4beed" } } $('.js-work-strip[data-work-id=112049928]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049928,"title":"Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate","internal_url":"https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401295,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401295/thumbnails/1.jpg","file_name":"s11738-020-03057-520231222-1-t2kqca.pdf","download_url":"https://www.academia.edu/attachments/109401295/download_file","bulk_download_file_name":"Effects_of_ultraviolet_radiation_on_the.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401295/s11738-020-03057-520231222-1-t2kqca-libre.pdf?1703233275=\u0026response-content-disposition=attachment%3B+filename%3DEffects_of_ultraviolet_radiation_on_the.pdf\u0026Expires=1739828284\u0026Signature=RroR~uPTysXdaLS25dKTGnNwmg0UnCqG8U-J2m-eITND1d4qLwzjEujFVEXICkSZINIkcQgecyL14kMoqdhALC8cxWXg4qmkKz7ELwTigDvNCbpxxUF5wML-qmezhOGO8nTcbIgN2pkf0FK~zSWs0gwejouxV3Rz4RA4uoqZUVlOWRsiAeBAUa2EGuL21jvA744TUNoqZQ8nUXFqGCySOM3WPDekJNFsvUtrD-wOts7CnzNfFnNGMK-wgzLAMQu2p43uaEkU7yPU7mv~6z5HNXrk282uZGpirxvvsxBVq~MNEr147yo77Cg0WUPO3JXRxzB~aUVHh6Q6mW6FUeSfjg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049927"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites"><img alt="Research paper thumbnail of Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites" class="work-thumbnail" src="https://attachments.academia-assets.com/109401291/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites">Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Biological Sciences</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Pyropia represents most domesticated seaweed in the world. Therefore, we aimed to determine if cu...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Pyropia represents most domesticated seaweed in the world. Therefore, we aimed to determine if cultivation of the red macroalga Pyropia acanthophora E. C. Oliveira and Coll (Rhodophyta: Bangiales) under laboratory conditions would affect the presence and concentration of secondary metabolites. To accomplish this, experiments were performed with ambient sample and acclimated sample (laboratory conditions). The conditions of the culture room were as follows: 24 oC, salinity of 35%o, constant aeration, irradiance of 80 umol.photons.m-2.s-1 and photoperiod of 12 h, for 7 days. Ambient sample showed lower concentrations of allophycocyanin and phycoerythrin when compared to the acclimated sample, but phycocyanin concentration was higher in the ambient sample. Carotenoids showed higher concentrations in the acclimated sample when compared to the ambient sample. Total phenolics were insignificant, while total flavonoids were higher in the ambient sample. No pattern in the production of thes...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="32def0e93fafaeb86cf42b8565002dfc" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401291,"asset_id":112049927,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401291/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049927"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049927"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049927; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049927]").text(description); $(".js-view-count[data-work-id=112049927]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049927; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049927']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "32def0e93fafaeb86cf42b8565002dfc" } } $('.js-work-strip[data-work-id=112049927]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049927,"title":"Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites","internal_url":"https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401291,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401291/thumbnails/1.jpg","file_name":"download.pdf","download_url":"https://www.academia.edu/attachments/109401291/download_file","bulk_download_file_name":"Pyropia_acanthophora_var_brasiliensis_E.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401291/download-libre.pdf?1703233274=\u0026response-content-disposition=attachment%3B+filename%3DPyropia_acanthophora_var_brasiliensis_E.pdf\u0026Expires=1739828284\u0026Signature=Ov~ZkqgJyzKH7aN-xAO9418Yhow-QbS1eCjCn5JdYQCqd~cMMFjpTZG6wuSJp-sJTGKEVbacUhQHaXYc74HK0tuxPc8IJ66Yg6cDzDYygE2JGwAsHZyo9BGEzpzFUFRB0~yr-Bcs8K~1Bj3I-QCJw5mdLCE-pe-27uXHw75SX9tAeXypUX30hdn~NUWHfTu8CXsdOlvl038RK3LPwJ2i3P6rjdHBBdNxK-5wgdUlK7MwVdS73tG~Foz~x9m1WH4LGflyBvvqOu~627AVHO~W9XiFAudneQQi7k6W~Bt~0cWBJg3vruQrKJMGQl4nHIkJxybKgxZRp69K~-sigRo2yA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049926"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049926/Estudo_comparativo_dos_efeitos_das_radia%C3%A7%C3%B5es_ultravioleta_A_e_ultravioleta_B_na_organiza%C3%A7%C3%A3o_celular_e_na_fisiologia_da_macroalga_vermelha_Acanthophora_spicifera_coletada_em_dois_ambientes_da_ilha_de_Santa_Catarina_Lagoa_da_Concei%C3%A7%C3%A3o_e_praia_de_Sambaqui_"><img alt="Research paper thumbnail of Estudo comparativo dos efeitos das radiações ultravioleta A e ultravioleta B na organização celular e na fisiologia da macroalga vermelha Acanthophora spicifera coletada em dois ambientes da ilha de Santa Catarina (Lagoa da Conceição e praia de Sambaqui)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401292/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049926/Estudo_comparativo_dos_efeitos_das_radia%C3%A7%C3%B5es_ultravioleta_A_e_ultravioleta_B_na_organiza%C3%A7%C3%A3o_celular_e_na_fisiologia_da_macroalga_vermelha_Acanthophora_spicifera_coletada_em_dois_ambientes_da_ilha_de_Santa_Catarina_Lagoa_da_Concei%C3%A7%C3%A3o_e_praia_de_Sambaqui_">Estudo comparativo dos efeitos das radiações ultravioleta A e ultravioleta B na organização celular e na fisiologia da macroalga vermelha Acanthophora spicifera coletada em dois ambientes da ilha de Santa Catarina (Lagoa da Conceição e praia de Sambaqui)</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Agradeço aos meus pais, Vilson Pereira e Benilde Tomazi Pereira, pelo incentivo, amor, carinho e ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Agradeço aos meus pais, Vilson Pereira e Benilde Tomazi Pereira, pelo incentivo, amor, carinho e ensino em todos os momentos da minha graduação e pós-graduação e por tornar possível a minha caminhada pela Universidade Federal de Santa Catarina. À minha irmã, Maria Luiza Tomazi Pereira, por ser um exemplo a seguir e pelo amparo. À minha orientadora Zenilda Laurita Bouzon e ao meu coorientador Éder Carlos Schmidt, por todos os ensinamentos e por acreditarem na minha capacidade. Tudo que aprendi nesta caminhada pelo LABCEV foi graças a vocês, graças ao esforço, atenção e tempo dedicados a mim. Obrigada pela oportunidade de trabalhar com vocês! À toda a equipe do laboratório: Carmen, Elisa, Chirle, Marianne, Luciane, Deonir, João e Felipe. À Fernanda Ramlov pela colaboração em diversas análises e por ter dedicado tempo a este trabalho. Aos amigos biólogos: Mariana, Roberta, Claudini, Gabriel, Tomás, Guilherme, Gabriela, Bárbara e Franciele, que mesmo distantes neste período, me incentivaram muito durante a graduação. Aos amigos da Pós-Graduação em Biologia Celular e do Desenvolvimento por dividir as angústias, alegrias e conhecimentos durante as disciplinas. Ao corpo docente da Pós-Graduação em Biologia Celular e do Desenvolvimento por todo conhecimento passado. Ao meu namorado, Vitor Oliveira de Souza, pela ajuda nas coletas e limpeza de algas, pela paciência em escutar meus desabafos, pelos incentivos e pelas risadas proporcionadas, tornando tudo mais simples. Agradeço à UFSC pelo ensino e a CAPES-CNPq pelo apoio financeiro. vi Dedico este trabalho ao meu pai Vilson Pereira, minha mãe Benilde Tomazi Pereira e aos meus orientadores Zenilda e Éder que me apoiaram e tornaram tudo possível.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bc05731b8c8cf0cae87d79bba7663f1e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401292,"asset_id":112049926,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401292/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049926"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049926"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049926; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049924"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049924/Varia%C3%A7%C3%A3o_por_um_ano_da_radia%C3%A7%C3%A3o_fotossinteticamente_ativa_ultravioleta_a_e_ultravioleta_b_no_bairro_Trindade_Florian%C3%B3polis_Santa_Catarina"><img alt="Research paper thumbnail of Variação por um ano da radiação fotossinteticamente ativa, ultravioleta-a e ultravioleta-b no bairro Trindade, Florianópolis, Santa Catarina" class="work-thumbnail" src="https://attachments.academia-assets.com/109401263/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049924/Varia%C3%A7%C3%A3o_por_um_ano_da_radia%C3%A7%C3%A3o_fotossinteticamente_ativa_ultravioleta_a_e_ultravioleta_b_no_bairro_Trindade_Florian%C3%B3polis_Santa_Catarina">Variação por um ano da radiação fotossinteticamente ativa, ultravioleta-a e ultravioleta-b no bairro Trindade, Florianópolis, Santa Catarina</a></div><div class="wp-workCard_item"><span>Geosul</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">O objetivo deste estudo foi medir a intensidade de PAR, RUVA e RUVB durante um ano em Florianópol...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">O objetivo deste estudo foi medir a intensidade de PAR, RUVA e RUVB durante um ano em Florianópolis. As medições ocorreram todas as segundas, quartas e sextas-feira às 10:00, às 11:00, às 12:00, às 13:00 e às 14:00. As maiores intensidades de PAR foram observadas em janeiro, seguidas de fevereiro, novembro e dezembro. As maiores intensidades de RUVA ocorreram de setembro a fevereiro, e para RUVB, de novembro a fevereiro. Tendo em conta o horário, as intensidades de PAR não mostraram diferença estatística, as intensidades de RUVA foram maiores que as de RUVB durante todos os meses e em todos os momentos. Para RUVA, os picos de intensidade ocorreram ao meio-dia, enquanto o RUVB foi mais constante durante as horas medidas. Sazonalmente, observou-se que os índices mais altos de PAR, UVAR e UVBR ocorreram no verão.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="52132c9a50e33c2a6a8f73b1f639711d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401263,"asset_id":112049924,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401263/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049924"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049924"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049924; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "52132c9a50e33c2a6a8f73b1f639711d" } } $('.js-work-strip[data-work-id=112049924]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049924,"title":"Variação por um ano da radiação fotossinteticamente ativa, ultravioleta-a e ultravioleta-b no bairro Trindade, Florianópolis, Santa Catarina","internal_url":"https://www.academia.edu/112049924/Varia%C3%A7%C3%A3o_por_um_ano_da_radia%C3%A7%C3%A3o_fotossinteticamente_ativa_ultravioleta_a_e_ultravioleta_b_no_bairro_Trindade_Florian%C3%B3polis_Santa_Catarina","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401263,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401263/thumbnails/1.jpg","file_name":"41797.pdf","download_url":"https://www.academia.edu/attachments/109401263/download_file","bulk_download_file_name":"Variacao_por_um_ano_da_radiacao_fotossin.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401263/41797-libre.pdf?1703233275=\u0026response-content-disposition=attachment%3B+filename%3DVariacao_por_um_ano_da_radiacao_fotossin.pdf\u0026Expires=1739828284\u0026Signature=W0lE0z403nDpHudPnhFlxJxf6YwTM9YQSmj8aOcokN4T5IyvHDuVLb-a1pWWRiOfxhoAjIcwhfFXn~c-nxkwFRQFSX25x0b4-EKa26EjqrGneA0aehrLslk7ozn~QwuUoRSyg4us4GhHspaXx7TZ6~-Eeb3RNChgWmA0Xf2qPwGWhAn48ZR9jI9izUvTGXh2k~kAhgsaQSVP9rnWa-gRGlpsdRIxa1oFMFrU3UmFrE0Efro4foduHZlrO8GOM~UkdfNg2icIOTNM6mdXjOOTOAuiGR-kvyORxU9K57QovQPaSPKyAE8kxTLTyv~Qm5CPiMNNIyxEdaw0a5hfC0cfKQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"},{"id":109401262,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401262/thumbnails/1.jpg","file_name":"41797.pdf","download_url":"https://www.academia.edu/attachments/109401262/download_file","bulk_download_file_name":"Variacao_por_um_ano_da_radiacao_fotossin.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401262/41797-libre.pdf?1703233273=\u0026response-content-disposition=attachment%3B+filename%3DVariacao_por_um_ano_da_radiacao_fotossin.pdf\u0026Expires=1739828284\u0026Signature=cKu69rNP2Y74EvpdxIqlwbKeJqvah-vubFVByh60HxbtYqi5cCJo2z4-jPOR7VnbJHKwWQsB-9xnjmJ9NPPGHZyowgpfLOIRtEU5i3GoiLQyzEafDKsV~Ioxyo6yjE1G7Pw01zGO3vMoImykvzIjVGUchaZ4YN565DyN4OkDTEF1ROR0zMlPljURnCF9r5wkLUZlEDmSME-l4D3GlfRswdMTDzDZ1Q0YgPs8PaPX6RVyvQewpH8YtcijoITyOTW2y9LOCU3PpJ1y1x7jMgHrobTSwjvAMY~4OobXJwMeajhQgPE2q2UltrWrE6RxYZXUjtQHD04TH8SMl9N8ZjcbQw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049922"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049922/Effects_of_high_nitrate_concentrations_on_the_germination_of_carpospores_of_the_red_seaweed_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_"><img alt="Research paper thumbnail of Effects of high nitrate concentrations on the germination of carpospores of the red seaweed Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401298/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049922/Effects_of_high_nitrate_concentrations_on_the_germination_of_carpospores_of_the_red_seaweed_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_">Effects of high nitrate concentrations on the germination of carpospores of the red seaweed Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales)</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Pyropia is a genus of algae used in sushi. Nitrate (NO 3-) is essential for its growth. Excess NO...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Pyropia is a genus of algae used in sushi. Nitrate (NO 3-) is essential for its growth. Excess NO 3 is flushed into seawater, as a result of anthropogenic activities, increasing the potential for higher than normal concentrations which could be harmful to both algae and humans. This study aims to evaluate the effect of NO 3 on the morphology, ultrastructure, spore viability, autofluorescence of chloroplasts, and formation of cell wall, during germination of the red seaweed Pyropia acanthophora var. brasiliensis. To accomplish this, carpospores were cultivated at 24°C, 40 lmol photons m-2 s-1 with photoperiod of 12 h and exposed to 0, 25, 50, and 100 mM of NO 3 for 2 days. Samples were cultured for another 5 days to measure the length of the germ tube. Concentrations of NO 3 did not significantly influence the development, morphology, viability, or ultrastructure of the spores in the first 2 days. The absence of this nutrient did delay the ultrastructural development of the carpospore, decreasing autofluorescence of the chloroplast and delaying the formation of the cell wall and pyrenoid. Over the seven-day experimental period, higher concentrations of NO 3 increased the size of the germ tube, indicating that this extra concentration boosted the development of P. acanthophora.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="7c7d47c3ed8aa0225bf2005f6a8f9027" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401298,"asset_id":112049922,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401298/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049922"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049922"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049922; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049921"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049921/Cellular_Responses_of_Gelidium_floridanum_Gelidiales_Rhodophyta_Tetraspores_Under_Heat_Wave_and_Copper_Pollution"><img alt="Research paper thumbnail of Cellular Responses of Gelidium floridanum (Gelidiales, Rhodophyta) Tetraspores Under Heat Wave and Copper Pollution" class="work-thumbnail" src="https://attachments.academia-assets.com/109401293/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049921/Cellular_Responses_of_Gelidium_floridanum_Gelidiales_Rhodophyta_Tetraspores_Under_Heat_Wave_and_Copper_Pollution">Cellular Responses of Gelidium floridanum (Gelidiales, Rhodophyta) Tetraspores Under Heat Wave and Copper Pollution</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Spore settlement and development are bottlenecks for resilience of habitat‐forming macroalgal spe...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Spore settlement and development are bottlenecks for resilience of habitat‐forming macroalgal species. These processes are directly related to temperature, a global stressor protagonist of ocean warming. The toxic effects of local pollutants such as copper may be worsened under a global warming scenario. Therefore, in this paper, we investigated the effects of increased temperature combined with elevated concentrations of copper on the viability, photosynthetic pigments, and ultrastructure of Gelidium floridanum tetraspores. Tetraspores were cultivated on slides with sterilized seawater or seawater enriched with CuCl2, and incubated under 24°C or 30°C for 24 h. Tetraspores cultivated with copper 3.0 μM under 30°C had lower viability. Both temperature and copper had a significant effect on phycocyanin and phycoerythrin concentrations. Samples cultivated with copper under 30°C presented a heavily altered cellular structure, with vesicles throughout the cytoplasm, chloroplasts with alt...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b4494485d19994416fdc992f4d675a41" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401293,"asset_id":112049921,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401293/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049921"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049921"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049921; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049921]").text(description); $(".js-view-count[data-work-id=112049921]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049921; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049921']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049920"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049920/Effects_of_Ultraviolet_Radiation_UV_A_UV_B_on_the_Antioxidant_Metabolism_of_the_Red_Macroalga_Species_Acanthophora_spicifera_Rhodophyta_Ceramiales_From_Different_Salinity_and_Nutrient_Conditions"><img alt="Research paper thumbnail of Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions" class="work-thumbnail" src="https://attachments.academia-assets.com/109401285/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049920/Effects_of_Ultraviolet_Radiation_UV_A_UV_B_on_the_Antioxidant_Metabolism_of_the_Red_Macroalga_Species_Acanthophora_spicifera_Rhodophyta_Ceramiales_From_Different_Salinity_and_Nutrient_Conditions">Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions</a></div><div class="wp-workCard_item"><span>Photochemistry and Photobiology</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Acanthophora spicifera (M.Vahl) Børgesen is a macroalga of great economic importance. This study ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Acanthophora spicifera (M.Vahl) Børgesen is a macroalga of great economic importance. This study evaluated the antioxidant responses of two algal populations of A. spicifera adapted to different abiotic conditions when exposed to ultraviolet‐A+ultraviolet‐B radiation (UV‐A+UV‐B). Experiments were performed using the water at two collection points for 7 days of acclimatization and 7 days of exposure to UVR (3 h per day), followed by metabolic analyses. At point 1, water of 30 ± 1 practical salinity unit (psu) had concentrations of 1.06 ± 0.27 mm , 8.47 ± 0.01 mm , 0.17 ± 0.01 mm and pH 7.88. At point 2, water of 35 ± 1 psu had concentrations of 1.13 ± 0.05 mm , 3.73 ± 0.01 mm , 0.52 ± 0.01 mm and pH 8.55. Chlorophyll a, phycobiliproteins, carotenoids, mycosporins, polyphenolics and antioxidant enzymes (catalase, superoxide dismutase and guaiacol peroxidase) were evaluated. The present study demonstrates that ultraviolet radiation triggers antioxidant activity in the A. spicifera. How...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="70830ac62f48ac10a2b0aa2f36dee1d7" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401285,"asset_id":112049920,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401285/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049920"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049920"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049920; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049920]").text(description); $(".js-view-count[data-work-id=112049920]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049920; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049920']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "70830ac62f48ac10a2b0aa2f36dee1d7" } } $('.js-work-strip[data-work-id=112049920]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049920,"title":"Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions","internal_url":"https://www.academia.edu/112049920/Effects_of_Ultraviolet_Radiation_UV_A_UV_B_on_the_Antioxidant_Metabolism_of_the_Red_Macroalga_Species_Acanthophora_spicifera_Rhodophyta_Ceramiales_From_Different_Salinity_and_Nutrient_Conditions","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401285,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401285/thumbnails/1.jpg","file_name":"php.1309420231222-1-viqu1g.pdf","download_url":"https://www.academia.edu/attachments/109401285/download_file","bulk_download_file_name":"Effects_of_Ultraviolet_Radiation_UV_A_UV.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401285/php.1309420231222-1-viqu1g-libre.pdf?1703233281=\u0026response-content-disposition=attachment%3B+filename%3DEffects_of_Ultraviolet_Radiation_UV_A_UV.pdf\u0026Expires=1739828284\u0026Signature=JYY1vqudJws1ILTp1NnOSxrEijo1AIkWspdtwapnnoR2At-QXGXBEla0omXYkdZAykS6mHhW~QucRqiR-WNfIXKbFGcNd6a4ECJdKdfHWIe0DFW7NqUwlXzatGEgxNr0fgjdYZpd56-9oinHo3Tz1oVYXyBMO5Gs2WygXP1vhRLCcnSqyrJCqvTlxjvMdzNaCAmG7gU4ITF-nCkT-Jvhp33FSJWxC9yYReQ4DjmDsEnjpB0nSKNexTFbYX5sO9fgvo~W0Lua0in2NQeMBuH620DYg8x0VEzN9zn1fu4m6UovUrq-uDI2YHGDrrdrr9mYWUNV1xTOa0KwS2MxIKVxrA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049919"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049919/Participation_of_actin_filaments_myosin_and_phosphatidylinositol_3_kinase_in_the_formation_and_polarisation_of_tetraspore_germ_tube_of_Gelidium_floridanum_Rhodophyta_Florideophyceae_"><img alt="Research paper thumbnail of Participation of actin filaments, myosin and phosphatidylinositol 3-kinase in the formation and polarisation of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae )" class="work-thumbnail" src="https://attachments.academia-assets.com/109401287/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049919/Participation_of_actin_filaments_myosin_and_phosphatidylinositol_3_kinase_in_the_formation_and_polarisation_of_tetraspore_germ_tube_of_Gelidium_floridanum_Rhodophyta_Florideophyceae_">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase in the formation and polarisation of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae )</a></div><div class="wp-workCard_item"><span>Plant Biology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase (PI3K) in the formatio...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase (PI3K) in the formation and polarization of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f81705416a1c5674fe0b91ad3cbde55f" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401287,"asset_id":112049919,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401287/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049919"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049919"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049919; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049918"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049918/Effects_of_Ultraviolet_Radiation_UVA_UVB_on_Germination_of_Carpospores_of_the_Red_Macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_Morphological_Changes"><img alt="Research paper thumbnail of Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes" class="work-thumbnail" src="https://attachments.academia-assets.com/109401286/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049918/Effects_of_Ultraviolet_Radiation_UVA_UVB_on_Germination_of_Carpospores_of_the_Red_Macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_Morphological_Changes">Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes</a></div><div class="wp-workCard_item"><span>Photochemistry and Photobiology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units respo...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units responsible for giving rise to the diploid filamentous structure of this alga&#39;s life cycle. The present study assesses the anthropogenic impact of ultraviolet radiation (UVR) on morphology and ultrastructure, spore viability, autofluorescence of chloroplasts and the amount of intensity of ROS during the germination of carpospores. Carpospores were cultivated at 24 ± 1°C, 40 ± 10 μmol photons m−2 s−1 with photoperiod of 12 h and exposed to UVAR + UVBR for 3 h a day for 2 days with a daily dose of 5.05 J cm−2 for UVAR and 0.095 J cm−2 for UVBR. Samples were cultured for another five days exposed only to PAR in order to confirm their viability after the initial 2‐day exposure. Carpospores showed significant sensitivity to UVR exposure after only 48 h, including changes in developmental rate, overall morphology, cell organization and chloroplast autofluorescence. UVR exposure inhibited germ t...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d2bbfb8f38d38b0b69feab5498677142" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401286,"asset_id":112049918,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401286/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049918"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049918"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049918; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049918]").text(description); $(".js-view-count[data-work-id=112049918]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049918; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049918']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049917"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_"><img alt="Research paper thumbnail of {"__content__"=>"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).", "sup"=>{"__content__"=>"1"}}" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_">{"__content__"=>"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).", "sup"=>{"__content__"=>"1"}}</a></div><div class="wp-workCard_item"><span>Journal of phycology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Ocean warming is increasing and scientific predictions suggest a rise of up to 4°C in sea water t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Ocean warming is increasing and scientific predictions suggest a rise of up to 4°C in sea water temperatures. The combination of a polluted and warmer environment may be detrimental for aquatic species, especially for primary producers such as seaweeds. This study investigated the potential for interactive effects of an increased seawater temperature in a copper-rich environment on the photosynthetic pigments and metabolic compounds of the red seaweed Gelidium floridanum. Seaweed samples were cultivated in a factorial design with temperature (24°C and 30°C), copper (0 and 3 μM), and time (7 and 14 d). The exposure of G. floridanum to copper and 30°C for 7 d resulted in a lower concentration of chlorophyll a, smaller phycobiliprotein rods and lower concentration of soluble sugars. After 14 d of cultivation, a higher concentration of chlorophyll a and soluble sugars could be observed on seaweeds cultivated under 30°C. The accumulation of carotenoids and the release of phenolic compoun...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049917"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049917"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049917; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049917]").text(description); $(".js-view-count[data-work-id=112049917]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049917; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049917']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=112049917]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049917,"title":"{\"__content__\"=\u003e\"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).\", \"sup\"=\u003e{\"__content__\"=\u003e\"1\"}}","internal_url":"https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049916"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049916/Comparative_study_of_the_effects_of_salinity_and_UV_radiation_on_metabolism_and_morphology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_"><img alt="Research paper thumbnail of Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401283/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049916/Comparative_study_of_the_effects_of_salinity_and_UV_radiation_on_metabolism_and_morphology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_">Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)</a></div><div class="wp-workCard_item"><span>Photosynthetica</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Increase of harmful radiation to the Earth's surface due to ozone depletion results in higher exp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Increase of harmful radiation to the Earth's surface due to ozone depletion results in higher exposure to harmful ultraviolet-B radiation (UV), while fluctuations in seawater salinity may alter water density, ionic concentration, nutrient uptake, and osmotic pressure. This study evaluated the effects of salinity and UV on metabolism and morphology of Acanthophora spicifera (M.Vahl) Børgesen. Water with 30 and 37 psu [g(salt) kg-1 (sea water)] was used for experiments during 7 d of exposure to UV (3 h per day). We demonstrated that UV treatment predisposed, irrespective of salinity, A. spicifera to a decrease in its growth rate and cell viability, as well as affected its morphological parameters. After exposure to PAR + UVA + UVB (PAB), samples showed structural changes and damage, such as increasing cell wall thickness and chloroplast disruption. Our results indicate that UV led to dramatic metabolic changes and cellular imbalances, but more remarkable changes were seen in samples exposed to high salinity.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a0241621d252f916af15c5084423d224" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401283,"asset_id":112049916,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401283/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049916"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049916"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049916; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049915"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049915/Effects_of_salinity_on_the_physiology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_"><img alt="Research paper thumbnail of Effects of salinity on the physiology of the red macroalga, Acanthophora spicifera (Rhodophyta, Ceramiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401260/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049915/Effects_of_salinity_on_the_physiology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_">Effects of salinity on the physiology of the red macroalga, Acanthophora spicifera (Rhodophyta, Ceramiales)</a></div><div class="wp-workCard_item"><span>Acta Botanica Brasilica</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Salinity is an important abiotic factor since it is responsible for the local and/or regional dis...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Salinity is an important abiotic factor since it is responsible for the local and/or regional distribution of algae. In coastal regions, salinity changes with prevailing winds, precipitation and tide, and particularly in extreme intertidal conditions. Acanthophora spicifera is a red seaweed that occurs in the supratidal region in which changes in abiotic conditions occur frequently. Th is study evaluated the eff ects of salinity on the metabolism and morphology of A. spicifera. Algae were acclimatized under culture conditions with sterilized seawater for seven days. Experiments used diff erent salinities (15 to 50 psu) for seven days, followed by metabolic analyses. Th is study demonstrates that extreme salinities aff ect physiological parameters of A. spicifera, such as decrease in growth rate, as well as morphological parameters and concentrations of secondary metabolites. Acanthophora spicifera exhibited high tolerance to 25 to 40 psu, with little change in physiology, which favors the occurrence of this species in diverse environments. However, 15, 20, 45 and 50 psu were the most damaging and led to loss of biomass, depigmentation of apices, and the highest concentrations of antioxidant metabolites. Th e 50 psu treatment caused the greatest changes in general, greatly reducing a biomass and chlorophyll content, and facilitating the presence of endophytes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d1b66befaf619210760eabe19bc0291e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401260,"asset_id":112049915,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401260/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049915"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049915"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049915; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049914"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049914/Physiological_morphological_and_ultrastructural_responses_to_exposure_to_ultraviolet_radiation_in_the_red_alga_Aglaothamnion_uruguayense_W_R_Taylor_"><img alt="Research paper thumbnail of Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. Taylor)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401288/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049914/Physiological_morphological_and_ultrastructural_responses_to_exposure_to_ultraviolet_radiation_in_the_red_alga_Aglaothamnion_uruguayense_W_R_Taylor_">Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. Taylor)</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In this study, we examined the effect of ultraviolet radiation (UV) at the thalli of Aglaothamnio...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In this study, we examined the effect of ultraviolet radiation (UV) at the thalli of Aglaothamnion uruguayense (W.R. Taylor) N.E. Aponte, D.L. Ballantine & J.N. Norris exposed to two different conditions of radiation: PAR (control) and PAR ? UVA ? UVB for 3 h per day during 7 days. The effects of radiation on growth rates, photosynthetic pigments, cell viability, phenolic compounds and total soluble sugar and starch were analyzed. The morphology and the ultrastructure were also assessed. Algae were cultivated and then exposed to photosynthetically active radiation (PAR) at 14 W m-2 and PAR ? UVA (0.70 W m-2) ? UVB (0.35 W m-2) 3 h per day for 7 days. After exposure to PAR ? UVA ? UVB, A. uruguayense exhibited a 75% reduction in growth. Photosynthetic pigments, in particular, phycobiliproteins (allophycocyanin, phycocyanin and phycoerythrin), increased after exposure to PAR ? UVA ? UVB. UVR exposure changed the synthesis of carotenoids, including decreased of lutein by 67.1% and increased of b-carotene by 64.3% and of zeaxanthin by 23%. Phenolic compounds were reduced while flavonoids decreased by approximately 12.9% compared with samples exposed to PAR (control). Moreover, as determined by PAS, TEM and total starch extraction, the amount of starch grains decreased in algae exposed to UV. When observed under confocal microscopy, treated samples showed a significant reduction in the number and shape alteration of chloroplasts. TEM revealed changes in ultrastructure, including increased cell wall thickening and disorganization of cellulose microfibrils. Chloroplasts showed disrupted thylakoid membranes, damage to envelope membranes, and increased number of plastoglobuli. From these results, it can be concluded that UVB is a factor that negatively affects the growth and development of the macroalga A. uruguayense.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ae042a6bb14d84e950c866ad4140de27" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401288,"asset_id":112049914,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401288/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049914"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049914"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049914; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049914]").text(description); $(".js-view-count[data-work-id=112049914]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049914; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049914']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "ae042a6bb14d84e950c866ad4140de27" } } $('.js-work-strip[data-work-id=112049914]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049914,"title":"Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. 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To accomplish this, S. cymosum samples were cultivated under photosynthetic active radiation (PAR) and Cd (0, 0.1, 0.2, 0.4 and 0.8 mg L(-1)) during 7 and 14 days in laboratory-controlled conditions (0 mg L(-1) Cd at both exposure times as control). Seaweeds had high retention capacity (over 90 %) for both exposure times. Growth rates showed significant increases by 14 days, especially for 0.1 and 0.4 mg L(-1) Cd. Photosynthetic parameters were unaffected by Cd treatments. Chlorophyll contents were present in higher concentrations for all Cd treatments compared to respective control. Carotenoid profile showed significant differences in total composition and proportion of fucoxanthin and β-carotene, and no lutein was detected at 14 days. Phenolic and flavonoid compounds showed major accumulation at 14 days. Transmission electron microscopy (TEM) analyses presented major alteratio...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="29a211cf3e72d7323b61ffe7344928a2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401309,"asset_id":112049913,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401309/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049913"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049913"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049913; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049913]").text(description); $(".js-view-count[data-work-id=112049913]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049913; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049913']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049912"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations"><img alt="Research paper thumbnail of In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations" class="work-thumbnail" src="https://attachments.academia-assets.com/109401282/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations">In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations</a></div><div class="wp-workCard_item"><span>Chemosphere</span><span>, Jan 15, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Refined fuels have considerable share of pollution of marine ecosystems. Gasoline is one of the m...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Refined fuels have considerable share of pollution of marine ecosystems. Gasoline is one of the most consumed fuel worldwide, but its effects on marine benthic primary producers are poorly investigated. In this study, Ulva lactuca was chosen as a biological model due to its cosmopolitan nature and tolerance to high levels and wide range of xenobiotics and our goal was to evaluate the effects of gasoline on ultrastructure and metabolism of that seaweed. The experimental design consisted of in vitro exposure of U. lactuca to four concentrations of gasoline (0.001%, 0.01%, 0.1%, and 1.0%, v/v) over 30 min, 1 h, 12 h, and 24 h, followed by cytochemical, SEM, and biochemical analysis. Increase in the number of cytoplasmic granules, loss of cell turgor, cytoplasmic shrinkage, and alterations in the mucilage were some of the ultrastructural alterations observed in thalli exposed to gasoline. Decrease in carotenoid and polyphenol contents, as well as increase of soluble sugars and starch co...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b1cef7fd2db880075c9fe2d766fc7ba1" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401282,"asset_id":112049912,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401282/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049912"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049912"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049912; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049912]").text(description); $(".js-view-count[data-work-id=112049912]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049912; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049912']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "b1cef7fd2db880075c9fe2d766fc7ba1" } } $('.js-work-strip[data-work-id=112049912]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049912,"title":"In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations","internal_url":"https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401282,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401282/thumbnails/1.jpg","file_name":"document_38982_1.pdf","download_url":"https://www.academia.edu/attachments/109401282/download_file","bulk_download_file_name":"In_vitro_exposure_of_Ulva_lactuca_Linnae.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401282/document_38982_1-libre.pdf?1703233271=\u0026response-content-disposition=attachment%3B+filename%3DIn_vitro_exposure_of_Ulva_lactuca_Linnae.pdf\u0026Expires=1739828284\u0026Signature=MnpXffe9hZQ3Mb9PNXoAEEEup817kWXgaeMBdmmkQblFpBhkFHBAio7I2lqnV4OAWxfQrCuPrvdZ3V0Gh7MaaKyzAbrfq1dWgtAEecuWU-o9TIwp9ZPTJlt782ooG21R5wd7Xc7~b9w6KxgSaqfYGr51cYOhL6AG3ekn9qXZZ-IyhdJHmqPSoe2ipvxsechKfCEFYIL~staW3OBo0VQ0jUiAtSpmWzpZCE8A22tHwXlgFZ4NdY9NV-7Y9shLwvwwOduRsbFNwQeE3eimygPP4UPCCg3bCweFb1d4l7SLFlmmb1-qfcnuiZ0~ITWch0rCViN~FAZ6z7qZsVZH~bKOig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049911"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049911/Effects_of_cadmium_on_the_morphology_pigments_and_ultrastructure_of_Palisada_flagellifera_Ceramiales_Rhodophyta_cultivated_in_vitro"><img alt="Research paper thumbnail of Effects of cadmium on the morphology, pigments, and ultrastructure of Palisada flagellifera (Ceramiales, Rhodophyta) cultivated in vitro" class="work-thumbnail" src="https://attachments.academia-assets.com/109401290/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049911/Effects_of_cadmium_on_the_morphology_pigments_and_ultrastructure_of_Palisada_flagellifera_Ceramiales_Rhodophyta_cultivated_in_vitro">Effects of cadmium on the morphology, pigments, and ultrastructure of Palisada flagellifera (Ceramiales, Rhodophyta) cultivated in vitro</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study aimed to compare the effects of increasing concentrations of cadmium (Cd) on the growt...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study aimed to compare the effects of increasing concentrations of cadmium (Cd) on the growth rates, content of photosynthetic pigments, and ultrastructure of Palisada flagellifera (J. Agardh) K. W. Nam (Ceramiales, Rhodophyta). Plants were cultivated under photosynthetically active radiation (PAR) of 70 lmol photons m-2 s-1 with 0 (control), 2.5, 5.0, 7.5, 10 20, 40, and 60 lM of cadmium (CdCl 2) for 7 days. Subsequently, the apical segments of P. flagellifera were analyzed under transmission microscopy, and both growth rates and photosynthetic pigments were measured. Growth rates in P. flagellifera samples gradually decreased with the increasing concentration of Cd in culture medium. Palisada flagellifera exposed to 20, 40, and 60 lM of Cd showed thallus bleaching and partial necrosis. Damage to thylakoid membranes and discoloration, as well as reduced phycobiliproteins, were more evident at concentrations of Cd higher than 40 lM. Palisada flagellifera samples treated with Cd also showed cell wall thickness triggered by the activation of mechanical defense mechanisms to prevent entry of Cd into the cytoplasm, as well as the increase of chlorophyll a content. Overall, these results indicate that exposure to cadmium in concentrations exceeding 40 lM is sublethal to P. flagellifera.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="84ec172bbf10f0ec4cc78a97527f8ecb" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401290,"asset_id":112049911,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401290/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049911"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049911"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049911; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049910"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049910/Effects_of_UV_B_radiation_on_germlings_of_the_red_macroalga_Nemalion_helminthoides_Rhodophyta_"><img alt="Research paper thumbnail of Effects of UV-B radiation on germlings of the red macroalga Nemalion helminthoides (Rhodophyta)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401281/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049910/Effects_of_UV_B_radiation_on_germlings_of_the_red_macroalga_Nemalion_helminthoides_Rhodophyta_">Effects of UV-B radiation on germlings of the red macroalga Nemalion helminthoides (Rhodophyta)</a></div><div class="wp-workCard_item"><span>Journal of Microscopy and Ultrastructure</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Studies have clearly demonstrated the damaging effects of UV-B exposure on macroalgae, but few ha...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Studies have clearly demonstrated the damaging effects of UV-B exposure on macroalgae, but few have reported the impact of UV-B on spore germination and development at juvenile stages. Therefore, this work aimed to analyze the effects of UV-B radiation on germlings of Nemalion helminthoides at the tetrasporophytic phase. To accomplish this, germlings of N. helminthoides were cultivated in the laboratory and separated into two groups. The control group was exposed onlyto photosynthetic radiation, while the treatment group was exposed to photosynthetic radiation + UV-B for 2 hours during a period of 12 days. Control germlings showed increasing cellular proliferation and accumulation of reserve substances, as well as intense ramification in the last observed stages between 9 days and 12 days of development. Moreover, the chloroplasts presented a typical globular pyrenoid, profusely traversed by thylakoid membranes. Treated germlings, by contrast, showed intracellular damage, such as cell wall thickness, loss of chloroplast organization, changes in mitochondrial cristae, and increasing atrophy of the Golgi bodies. Additionally, changes in developmental patterns were observed, including loss of polarity in the first divisions of carpospores and abnormal stem ramification. The quantification of autofluorescence data coincided with the ultrastructural changes observed in the chloroplasts of cells exposed to UV-B. It can be concluded that exposure to radiation changed the developmental pattern and morphology of the germlings of N. helminthoides.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="cd4d31c24c36f1aa92c91fb6b5a6d30e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401281,"asset_id":112049910,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401281/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049910"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049910"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049910; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049910]").text(description); $(".js-view-count[data-work-id=112049910]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049910; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049910']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "cd4d31c24c36f1aa92c91fb6b5a6d30e" } } $('.js-work-strip[data-work-id=112049910]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049910,"title":"Effects of UV-B radiation on germlings of the red macroalga Nemalion helminthoides (Rhodophyta)","internal_url":"https://www.academia.edu/112049910/Effects_of_UV_B_radiation_on_germlings_of_the_red_macroalga_Nemalion_helminthoides_Rhodophyta_","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401281,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401281/thumbnails/1.jpg","file_name":"81930871.pdf","download_url":"https://www.academia.edu/attachments/109401281/download_file","bulk_download_file_name":"Effects_of_UV_B_radiation_on_germlings_o.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401281/81930871-libre.pdf?1703233290=\u0026response-content-disposition=attachment%3B+filename%3DEffects_of_UV_B_radiation_on_germlings_o.pdf\u0026Expires=1739828284\u0026Signature=d536-fZ~OkJY6M-FIwFCtf1WPK75GLgUy5t6WPlSRhvIrbnyQlNlPO7KAv2bqDpgH1R8uKWS2Anp1jYPxwReF6AdDerP-TImpveVzV7Iu9TbkVmHznVmRSsa6jhhoOrbYGluHPdxj6j-8a6DkTDTKI-xooUGSIOw0hF0ivg6mPOzAzHih9P4GkSKNf6hcw-2L7nbXYMRga6siNN4-nxgZoQpdW0L1JSchzuMSVOgMppjPAD3TH2u9KEtzfCH83j41nCnNBHGK3OO-fXSKINxNX-3UWoHSi2lB02H0GFVrUI4xlmSOojTjgf5ZTD4oHT3dZRdVvszHIGgKKHG36hbLg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049909"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities"><img alt="Research paper thumbnail of Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities" class="work-thumbnail" src="https://attachments.academia-assets.com/109401284/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities">Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities</a></div><div class="wp-workCard_item"><span>Journal of Applied Phycology</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The in vitro effect of cadmium (Cd) on apical segments of the red macroalga Pterocladiella capill...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The in vitro effect of cadmium (Cd) on apical segments of the red macroalga Pterocladiella capillacea was examined. Over a period of 7 days, the segments were cultivated with a combination of different salinities (25, 35, and 45 psu) and Cd concentrations ranging from 0.17 to 0.70 ppm. This study aimed to evaluate the effects of Cd exposure at various salinities on profiles of carotenoids amino acids and phenolic compounds. Carotenoid profile of control (0 ppm Cd) and Cdtreated plants of P. capillacea showed the presence of lutein, zeaxanthin, β-cryptoxanthin, α-carotene, trans-β-carotene and cis-β-carotene. Significant increase was found for almost all carotenoids, 0.35 ppm Cd + 25 psu, 0.70 ppm Cd + 25 psu, and 0 ppm Cd + 45 psu. Total phenolic compounds of P. capillacea had an overall decrease with treatments of Cd and 25 or 45 psu. Twenty essential amino acids were quantified in P. capillacea samples. At 0 ppm Cd and using baseline control of 35 psu, low and high salinity levels (25 and 45 psu, respectively) significantly altered total amino acid content. Apparently, salinity plays a greater role in amino acid response than Cd concentration. Therefore, more studies with intensified salinity stress over long-term exposure could confirm the major effect of the suggested treatment on this species.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5577e1fcb5f3726df050d928d7fbaa8d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401284,"asset_id":112049909,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401284/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049909"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049909"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049909; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049909]").text(description); $(".js-view-count[data-work-id=112049909]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049909; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049909']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5577e1fcb5f3726df050d928d7fbaa8d" } } $('.js-work-strip[data-work-id=112049909]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049909,"title":"Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities","internal_url":"https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401284,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401284/thumbnails/1.jpg","file_name":"s10811-015-0737-820231222-1-ng6os8.pdf","download_url":"https://www.academia.edu/attachments/109401284/download_file","bulk_download_file_name":"Profiles_of_carotenoids_and_amino_acids.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401284/s10811-015-0737-820231222-1-ng6os8-libre.pdf?1703233271=\u0026response-content-disposition=attachment%3B+filename%3DProfiles_of_carotenoids_and_amino_acids.pdf\u0026Expires=1739828284\u0026Signature=HZZBN3zh5qLDPOIr8uHv-d~HkxdITBPXhFoRGgYpS7pEvdAIMUNPNEgPw0cDabHPHtPPX6Bq81nYfr4GteBpI4pb0yhItEvOgGTxVCih51PjzgC0vcvRY4dT~PxJNiAiKahw6juGd5U1~zEZE9i73byqcrU~y5feOGMzYGTOTH3W7pGkLIjfjwrlBDWIpFGq00Yxn9usqTJ0n6vDVU6S82dhxEZV2Kd-mAcoyidVpxuLu1y6qMffBA4oTKn~ayzLmnIH-sn2xlIY6LvrN8WWCEAQz5i8ZSWXjIeRkYSP93tJdbhB5VgnvGyesEes4GLkIAThJ-4fKFM7VOex1hxIvw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049908"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049908/Influence_of_cadmium_and_salinity_in_the_red_alga_Pterocladiella_capillacea_cell_morphology_photosynthetic_performance_and_antioxidant_systems"><img alt="Research paper thumbnail of Influence of cadmium and salinity in the red alga Pterocladiella capillacea: cell morphology, photosynthetic performance and antioxidant systems" class="work-thumbnail" src="https://attachments.academia-assets.com/109401289/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049908/Influence_of_cadmium_and_salinity_in_the_red_alga_Pterocladiella_capillacea_cell_morphology_photosynthetic_performance_and_antioxidant_systems">Influence of cadmium and salinity in the red alga Pterocladiella capillacea: cell morphology, photosynthetic performance and antioxidant systems</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study aimed to determine the effects of cadmium (Cd) on apical segments of Pterocladiella ca...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study aimed to determine the effects of cadmium (Cd) on apical segments of Pterocladiella capillacea (S. G. Gmelin) Santelices & Hommersand. For 7 days, these segments were cultivated under different salinities (25, 35 and 45 psu) and different Cd concentrations (0.17-0.70 ppm Cd). The samples were processed for light and confocal microscopy to assess photosynthetic performance, CHN levels, protein levels, as well as NADH dehydrogenase, and catalase activities. Plants cultivated at 0.70 ppm showed a reduction in the number of floridean starch grains by cytochemical analysis. Chloroplast autofluorescence decreased with cadmium exposure, while the kinetic patterns of ETR-light curves showed no significant differences among the treatments. Treatments showed variations in CNH levels, but no clear trend was observed. The content of total soluble protein and mitochondrial NADH dehydrogenase activity varied significantly, depending on the cadmium concentration and salinity levels. However, catalase activity decreased only in samples exposed to both cadmium and salinity treatments. Based on these lines of evidence, the present results showed a higher sensitivity of P. capillacea to increasing levels of cadmium exposure. When intermediate concentrations of cadmium were associated with low salinity values, its toxic effect on the model alga was intensified. Abiotic factors interfered with the physiological ability of the alga to protect itself from metal toxicity, resulting in metabolic compromise and reduction of primary productivity, i.e., photosynthesis and carbohydrate accumulation in the form of starch granules.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="4f535c485434d3f2db76967347625ce6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401289,"asset_id":112049908,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401289/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049908"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049908"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049908; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="3333790" id="papers"><div class="js-work-strip profile--work_container" data-work-id="112049930"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/112049930/Effects_of_indole_3_acetic_acid_IAA_jasmonic_acid_JA_and_gibberellic_acid_GA3_on_the_direct_regeneration_of_Gelidium_floridanum_explants"><img alt="Research paper thumbnail of Effects of indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA3) on the direct regeneration of Gelidium floridanum explants" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/112049930/Effects_of_indole_3_acetic_acid_IAA_jasmonic_acid_JA_and_gibberellic_acid_GA3_on_the_direct_regeneration_of_Gelidium_floridanum_explants">Effects of indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA3) on the direct regeneration of Gelidium floridanum explants</a></div><div class="wp-workCard_item"><span>Journal of Applied Phycology</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Gelidium floridanum is a red seaweed of economic importance as it yields high-quality agar which ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Gelidium floridanum is a red seaweed of economic importance as it yields high-quality agar which is extracted exclusively from material harvested from natural beds. Phytoregulators have not been explored in macroalgal culture as a probable alternative for large-scale farming of seaweed. Therefore, this study aimed to analyze the direct regeneration of G. floridanum explants using indole-3-acetic acid (IAA), jasmonic acid (JA), and gibberellic acid (GA). Explants (5 mm) were treated in liquid medium supplemented with IAA (0.57, 5.7, and 57 μM), JA (2, 4, and 8 mM), and GA (29, 43, and 58 mM) for 48 h and then further cultivated for 20 days. To observe the morphology and formation of new axes, micrographs were taken on the 5th day of culture using stereoscopic microscopy, and explants were processed for light and scanning electron microscopy. On the 20th day micrographs were obtained through stereoscopic microscopy for a final count of formed axes. After 5 days the formation of upright axes was greater and with a greater average size in the 2 and 4 mM JA treatments and floridean starch grains accumulated at the base, not being observed in the apical region. After 20 days the formation of new explants was higher in all treatments with IAA. We conclude that the direct regeneration of G. floridanum explants occurs from the medullary cells and starts in the first week of culture. Among the phytoregulators tested, JA contributed to the earlier formation of the upright axes, but after 20 days, IAA proved to be more efficient in the formation and size of these axes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049930"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049930"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049930; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049930]").text(description); $(".js-view-count[data-work-id=112049930]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049930; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049930']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049928"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate"><img alt="Research paper thumbnail of Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate" class="work-thumbnail" src="https://attachments.academia-assets.com/109401295/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate">Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate</a></div><div class="wp-workCard_item"><span>Acta Physiologiae Plantarum</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The abiotic and biotic factors of the environments are constantly changing, making sessile organi...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The abiotic and biotic factors of the environments are constantly changing, making sessile organisms, such as macroalgae, need to adjust to the given location. Two abiotic factors that change a lot are the nitrate (NO 3 −) concentration, thanks to the release of untreated sewage directly into the sea, and high irradiance due to the decrease in the ozone layer (O 3). The goal of this study is to understand if the quantity of NO 3 − influences the growth rate, ultrastructure, concentration, and autofluorescence of photosynthetic pigments, and concentration secondary and antioxidant metabolites of the algae Pyropia acanthophora var. brasiliensis exposed to ultraviolet radiation (UVR). Experiments with the algae were carried out with exposure to 0, 25, 50, and 100 mM of NO 3 − and PAB (= PAR + UVAR + UVBR) for 3 h a day for a period of 7 days, all after an acclimatization of 7 days. In samples exposed to UVR, there was an increase in antioxidant metabolites, while the highest concentrations of total soluble sugars and starch were found in the samples exposed to PAB [0]. High growth rates were observed in samples cultured with NO 3 − without UVR. In samples exposed to UVR, a decrease in the growth rates occurred, but the NO 3 − contributed to maintain the positive growth rates. This samples showed no alterations in the structure of the thylakoids of chloroplasts and there was no decrease in their autofluorescence. The presence of different concentrations of NO 3 − in the culture favored the production of photosynthetic pigments and the production of phenolic compounds, contributing to minimize the effects of ultraviolet radiation.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5b3767a2fae1d1feac394ebe51f4beed" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401295,"asset_id":112049928,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401295/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049928"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049928"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049928; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5b3767a2fae1d1feac394ebe51f4beed" } } $('.js-work-strip[data-work-id=112049928]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049928,"title":"Effects of ultraviolet radiation on the morphophysiology of the macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales) cultivated at high concentrations of nitrate","internal_url":"https://www.academia.edu/112049928/Effects_of_ultraviolet_radiation_on_the_morphophysiology_of_the_macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_cultivated_at_high_concentrations_of_nitrate","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401295,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401295/thumbnails/1.jpg","file_name":"s11738-020-03057-520231222-1-t2kqca.pdf","download_url":"https://www.academia.edu/attachments/109401295/download_file","bulk_download_file_name":"Effects_of_ultraviolet_radiation_on_the.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401295/s11738-020-03057-520231222-1-t2kqca-libre.pdf?1703233275=\u0026response-content-disposition=attachment%3B+filename%3DEffects_of_ultraviolet_radiation_on_the.pdf\u0026Expires=1739828284\u0026Signature=RroR~uPTysXdaLS25dKTGnNwmg0UnCqG8U-J2m-eITND1d4qLwzjEujFVEXICkSZINIkcQgecyL14kMoqdhALC8cxWXg4qmkKz7ELwTigDvNCbpxxUF5wML-qmezhOGO8nTcbIgN2pkf0FK~zSWs0gwejouxV3Rz4RA4uoqZUVlOWRsiAeBAUa2EGuL21jvA744TUNoqZQ8nUXFqGCySOM3WPDekJNFsvUtrD-wOts7CnzNfFnNGMK-wgzLAMQu2p43uaEkU7yPU7mv~6z5HNXrk282uZGpirxvvsxBVq~MNEr147yo77Cg0WUPO3JXRxzB~aUVHh6Q6mW6FUeSfjg__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049927"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites"><img alt="Research paper thumbnail of Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites" class="work-thumbnail" src="https://attachments.academia-assets.com/109401291/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites">Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Biological Sciences</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Pyropia represents most domesticated seaweed in the world. Therefore, we aimed to determine if cu...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Pyropia represents most domesticated seaweed in the world. Therefore, we aimed to determine if cultivation of the red macroalga Pyropia acanthophora E. C. Oliveira and Coll (Rhodophyta: Bangiales) under laboratory conditions would affect the presence and concentration of secondary metabolites. To accomplish this, experiments were performed with ambient sample and acclimated sample (laboratory conditions). The conditions of the culture room were as follows: 24 oC, salinity of 35%o, constant aeration, irradiance of 80 umol.photons.m-2.s-1 and photoperiod of 12 h, for 7 days. Ambient sample showed lower concentrations of allophycocyanin and phycoerythrin when compared to the acclimated sample, but phycocyanin concentration was higher in the ambient sample. Carotenoids showed higher concentrations in the acclimated sample when compared to the ambient sample. Total phenolics were insignificant, while total flavonoids were higher in the ambient sample. No pattern in the production of thes...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="32def0e93fafaeb86cf42b8565002dfc" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401291,"asset_id":112049927,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401291/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049927"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049927"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049927; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049927]").text(description); $(".js-view-count[data-work-id=112049927]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049927; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049927']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "32def0e93fafaeb86cf42b8565002dfc" } } $('.js-work-strip[data-work-id=112049927]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049927,"title":"Pyropia acanthophora var. brasiliensis E. C. Oliveira and Coll (Rhodophyta: Bangiales) cultivated in seawater under laboratory conditions favors the production of economically important secondary metabolites","internal_url":"https://www.academia.edu/112049927/Pyropia_acanthophora_var_brasiliensis_E_C_Oliveira_and_Coll_Rhodophyta_Bangiales_cultivated_in_seawater_under_laboratory_conditions_favors_the_production_of_economically_important_secondary_metabolites","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401291,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401291/thumbnails/1.jpg","file_name":"download.pdf","download_url":"https://www.academia.edu/attachments/109401291/download_file","bulk_download_file_name":"Pyropia_acanthophora_var_brasiliensis_E.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401291/download-libre.pdf?1703233274=\u0026response-content-disposition=attachment%3B+filename%3DPyropia_acanthophora_var_brasiliensis_E.pdf\u0026Expires=1739828284\u0026Signature=Ov~ZkqgJyzKH7aN-xAO9418Yhow-QbS1eCjCn5JdYQCqd~cMMFjpTZG6wuSJp-sJTGKEVbacUhQHaXYc74HK0tuxPc8IJ66Yg6cDzDYygE2JGwAsHZyo9BGEzpzFUFRB0~yr-Bcs8K~1Bj3I-QCJw5mdLCE-pe-27uXHw75SX9tAeXypUX30hdn~NUWHfTu8CXsdOlvl038RK3LPwJ2i3P6rjdHBBdNxK-5wgdUlK7MwVdS73tG~Foz~x9m1WH4LGflyBvvqOu~627AVHO~W9XiFAudneQQi7k6W~Bt~0cWBJg3vruQrKJMGQl4nHIkJxybKgxZRp69K~-sigRo2yA__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049926"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049926/Estudo_comparativo_dos_efeitos_das_radia%C3%A7%C3%B5es_ultravioleta_A_e_ultravioleta_B_na_organiza%C3%A7%C3%A3o_celular_e_na_fisiologia_da_macroalga_vermelha_Acanthophora_spicifera_coletada_em_dois_ambientes_da_ilha_de_Santa_Catarina_Lagoa_da_Concei%C3%A7%C3%A3o_e_praia_de_Sambaqui_"><img alt="Research paper thumbnail of Estudo comparativo dos efeitos das radiações ultravioleta A e ultravioleta B na organização celular e na fisiologia da macroalga vermelha Acanthophora spicifera coletada em dois ambientes da ilha de Santa Catarina (Lagoa da Conceição e praia de Sambaqui)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401292/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049926/Estudo_comparativo_dos_efeitos_das_radia%C3%A7%C3%B5es_ultravioleta_A_e_ultravioleta_B_na_organiza%C3%A7%C3%A3o_celular_e_na_fisiologia_da_macroalga_vermelha_Acanthophora_spicifera_coletada_em_dois_ambientes_da_ilha_de_Santa_Catarina_Lagoa_da_Concei%C3%A7%C3%A3o_e_praia_de_Sambaqui_">Estudo comparativo dos efeitos das radiações ultravioleta A e ultravioleta B na organização celular e na fisiologia da macroalga vermelha Acanthophora spicifera coletada em dois ambientes da ilha de Santa Catarina (Lagoa da Conceição e praia de Sambaqui)</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Agradeço aos meus pais, Vilson Pereira e Benilde Tomazi Pereira, pelo incentivo, amor, carinho e ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Agradeço aos meus pais, Vilson Pereira e Benilde Tomazi Pereira, pelo incentivo, amor, carinho e ensino em todos os momentos da minha graduação e pós-graduação e por tornar possível a minha caminhada pela Universidade Federal de Santa Catarina. À minha irmã, Maria Luiza Tomazi Pereira, por ser um exemplo a seguir e pelo amparo. À minha orientadora Zenilda Laurita Bouzon e ao meu coorientador Éder Carlos Schmidt, por todos os ensinamentos e por acreditarem na minha capacidade. Tudo que aprendi nesta caminhada pelo LABCEV foi graças a vocês, graças ao esforço, atenção e tempo dedicados a mim. Obrigada pela oportunidade de trabalhar com vocês! À toda a equipe do laboratório: Carmen, Elisa, Chirle, Marianne, Luciane, Deonir, João e Felipe. À Fernanda Ramlov pela colaboração em diversas análises e por ter dedicado tempo a este trabalho. Aos amigos biólogos: Mariana, Roberta, Claudini, Gabriel, Tomás, Guilherme, Gabriela, Bárbara e Franciele, que mesmo distantes neste período, me incentivaram muito durante a graduação. Aos amigos da Pós-Graduação em Biologia Celular e do Desenvolvimento por dividir as angústias, alegrias e conhecimentos durante as disciplinas. Ao corpo docente da Pós-Graduação em Biologia Celular e do Desenvolvimento por todo conhecimento passado. Ao meu namorado, Vitor Oliveira de Souza, pela ajuda nas coletas e limpeza de algas, pela paciência em escutar meus desabafos, pelos incentivos e pelas risadas proporcionadas, tornando tudo mais simples. Agradeço à UFSC pelo ensino e a CAPES-CNPq pelo apoio financeiro. vi Dedico este trabalho ao meu pai Vilson Pereira, minha mãe Benilde Tomazi Pereira e aos meus orientadores Zenilda e Éder que me apoiaram e tornaram tudo possível.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="bc05731b8c8cf0cae87d79bba7663f1e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401292,"asset_id":112049926,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401292/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049926"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049926"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049926; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049924"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049924/Varia%C3%A7%C3%A3o_por_um_ano_da_radia%C3%A7%C3%A3o_fotossinteticamente_ativa_ultravioleta_a_e_ultravioleta_b_no_bairro_Trindade_Florian%C3%B3polis_Santa_Catarina"><img alt="Research paper thumbnail of Variação por um ano da radiação fotossinteticamente ativa, ultravioleta-a e ultravioleta-b no bairro Trindade, Florianópolis, Santa Catarina" class="work-thumbnail" src="https://attachments.academia-assets.com/109401263/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049924/Varia%C3%A7%C3%A3o_por_um_ano_da_radia%C3%A7%C3%A3o_fotossinteticamente_ativa_ultravioleta_a_e_ultravioleta_b_no_bairro_Trindade_Florian%C3%B3polis_Santa_Catarina">Variação por um ano da radiação fotossinteticamente ativa, ultravioleta-a e ultravioleta-b no bairro Trindade, Florianópolis, Santa Catarina</a></div><div class="wp-workCard_item"><span>Geosul</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">O objetivo deste estudo foi medir a intensidade de PAR, RUVA e RUVB durante um ano em Florianópol...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">O objetivo deste estudo foi medir a intensidade de PAR, RUVA e RUVB durante um ano em Florianópolis. As medições ocorreram todas as segundas, quartas e sextas-feira às 10:00, às 11:00, às 12:00, às 13:00 e às 14:00. As maiores intensidades de PAR foram observadas em janeiro, seguidas de fevereiro, novembro e dezembro. As maiores intensidades de RUVA ocorreram de setembro a fevereiro, e para RUVB, de novembro a fevereiro. Tendo em conta o horário, as intensidades de PAR não mostraram diferença estatística, as intensidades de RUVA foram maiores que as de RUVB durante todos os meses e em todos os momentos. Para RUVA, os picos de intensidade ocorreram ao meio-dia, enquanto o RUVB foi mais constante durante as horas medidas. Sazonalmente, observou-se que os índices mais altos de PAR, UVAR e UVBR ocorreram no verão.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="52132c9a50e33c2a6a8f73b1f639711d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401263,"asset_id":112049924,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401263/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049924"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049924"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049924; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049922"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049922/Effects_of_high_nitrate_concentrations_on_the_germination_of_carpospores_of_the_red_seaweed_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_"><img alt="Research paper thumbnail of Effects of high nitrate concentrations on the germination of carpospores of the red seaweed Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401298/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049922/Effects_of_high_nitrate_concentrations_on_the_germination_of_carpospores_of_the_red_seaweed_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_">Effects of high nitrate concentrations on the germination of carpospores of the red seaweed Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales)</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Pyropia is a genus of algae used in sushi. Nitrate (NO 3-) is essential for its growth. Excess NO...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Pyropia is a genus of algae used in sushi. Nitrate (NO 3-) is essential for its growth. Excess NO 3 is flushed into seawater, as a result of anthropogenic activities, increasing the potential for higher than normal concentrations which could be harmful to both algae and humans. This study aims to evaluate the effect of NO 3 on the morphology, ultrastructure, spore viability, autofluorescence of chloroplasts, and formation of cell wall, during germination of the red seaweed Pyropia acanthophora var. brasiliensis. To accomplish this, carpospores were cultivated at 24°C, 40 lmol photons m-2 s-1 with photoperiod of 12 h and exposed to 0, 25, 50, and 100 mM of NO 3 for 2 days. Samples were cultured for another 5 days to measure the length of the germ tube. Concentrations of NO 3 did not significantly influence the development, morphology, viability, or ultrastructure of the spores in the first 2 days. The absence of this nutrient did delay the ultrastructural development of the carpospore, decreasing autofluorescence of the chloroplast and delaying the formation of the cell wall and pyrenoid. Over the seven-day experimental period, higher concentrations of NO 3 increased the size of the germ tube, indicating that this extra concentration boosted the development of P. acanthophora.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="7c7d47c3ed8aa0225bf2005f6a8f9027" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401298,"asset_id":112049922,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401298/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049922"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049922"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049922; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049921"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049921/Cellular_Responses_of_Gelidium_floridanum_Gelidiales_Rhodophyta_Tetraspores_Under_Heat_Wave_and_Copper_Pollution"><img alt="Research paper thumbnail of Cellular Responses of Gelidium floridanum (Gelidiales, Rhodophyta) Tetraspores Under Heat Wave and Copper Pollution" class="work-thumbnail" src="https://attachments.academia-assets.com/109401293/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049921/Cellular_Responses_of_Gelidium_floridanum_Gelidiales_Rhodophyta_Tetraspores_Under_Heat_Wave_and_Copper_Pollution">Cellular Responses of Gelidium floridanum (Gelidiales, Rhodophyta) Tetraspores Under Heat Wave and Copper Pollution</a></div><div class="wp-workCard_item"><span>Journal of Phycology</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Spore settlement and development are bottlenecks for resilience of habitat‐forming macroalgal spe...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Spore settlement and development are bottlenecks for resilience of habitat‐forming macroalgal species. These processes are directly related to temperature, a global stressor protagonist of ocean warming. The toxic effects of local pollutants such as copper may be worsened under a global warming scenario. Therefore, in this paper, we investigated the effects of increased temperature combined with elevated concentrations of copper on the viability, photosynthetic pigments, and ultrastructure of Gelidium floridanum tetraspores. Tetraspores were cultivated on slides with sterilized seawater or seawater enriched with CuCl2, and incubated under 24°C or 30°C for 24 h. Tetraspores cultivated with copper 3.0 μM under 30°C had lower viability. Both temperature and copper had a significant effect on phycocyanin and phycoerythrin concentrations. Samples cultivated with copper under 30°C presented a heavily altered cellular structure, with vesicles throughout the cytoplasm, chloroplasts with alt...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b4494485d19994416fdc992f4d675a41" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401293,"asset_id":112049921,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401293/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049921"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049921"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049921; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049921]").text(description); $(".js-view-count[data-work-id=112049921]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049921; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049921']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049920"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049920/Effects_of_Ultraviolet_Radiation_UV_A_UV_B_on_the_Antioxidant_Metabolism_of_the_Red_Macroalga_Species_Acanthophora_spicifera_Rhodophyta_Ceramiales_From_Different_Salinity_and_Nutrient_Conditions"><img alt="Research paper thumbnail of Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions" class="work-thumbnail" src="https://attachments.academia-assets.com/109401285/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049920/Effects_of_Ultraviolet_Radiation_UV_A_UV_B_on_the_Antioxidant_Metabolism_of_the_Red_Macroalga_Species_Acanthophora_spicifera_Rhodophyta_Ceramiales_From_Different_Salinity_and_Nutrient_Conditions">Effects of Ultraviolet Radiation (UV‐A+UV‐B) on the Antioxidant Metabolism of the Red Macroalga Species Acanthophora spicifera (Rhodophyta, Ceramiales) From Different Salinity and Nutrient Conditions</a></div><div class="wp-workCard_item"><span>Photochemistry and Photobiology</span><span>, 2019</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Acanthophora spicifera (M.Vahl) Børgesen is a macroalga of great economic importance. This study ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Acanthophora spicifera (M.Vahl) Børgesen is a macroalga of great economic importance. This study evaluated the antioxidant responses of two algal populations of A. spicifera adapted to different abiotic conditions when exposed to ultraviolet‐A+ultraviolet‐B radiation (UV‐A+UV‐B). Experiments were performed using the water at two collection points for 7 days of acclimatization and 7 days of exposure to UVR (3 h per day), followed by metabolic analyses. At point 1, water of 30 ± 1 practical salinity unit (psu) had concentrations of 1.06 ± 0.27 mm , 8.47 ± 0.01 mm , 0.17 ± 0.01 mm and pH 7.88. At point 2, water of 35 ± 1 psu had concentrations of 1.13 ± 0.05 mm , 3.73 ± 0.01 mm , 0.52 ± 0.01 mm and pH 8.55. Chlorophyll a, phycobiliproteins, carotenoids, mycosporins, polyphenolics and antioxidant enzymes (catalase, superoxide dismutase and guaiacol peroxidase) were evaluated. The present study demonstrates that ultraviolet radiation triggers antioxidant activity in the A. spicifera. How...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="70830ac62f48ac10a2b0aa2f36dee1d7" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401285,"asset_id":112049920,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401285/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049920"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049920"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049920; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049919"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049919/Participation_of_actin_filaments_myosin_and_phosphatidylinositol_3_kinase_in_the_formation_and_polarisation_of_tetraspore_germ_tube_of_Gelidium_floridanum_Rhodophyta_Florideophyceae_"><img alt="Research paper thumbnail of Participation of actin filaments, myosin and phosphatidylinositol 3-kinase in the formation and polarisation of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae )" class="work-thumbnail" src="https://attachments.academia-assets.com/109401287/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049919/Participation_of_actin_filaments_myosin_and_phosphatidylinositol_3_kinase_in_the_formation_and_polarisation_of_tetraspore_germ_tube_of_Gelidium_floridanum_Rhodophyta_Florideophyceae_">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase in the formation and polarisation of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae )</a></div><div class="wp-workCard_item"><span>Plant Biology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase (PI3K) in the formatio...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Participation of actin filaments, myosin and phosphatidylinositol 3-kinase (PI3K) in the formation and polarization of tetraspore germ tube of Gelidium floridanum (Rhodophyta, Florideophyceae</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f81705416a1c5674fe0b91ad3cbde55f" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401287,"asset_id":112049919,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401287/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049919"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049919"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049919; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049918"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049918/Effects_of_Ultraviolet_Radiation_UVA_UVB_on_Germination_of_Carpospores_of_the_Red_Macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_Morphological_Changes"><img alt="Research paper thumbnail of Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes" class="work-thumbnail" src="https://attachments.academia-assets.com/109401286/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049918/Effects_of_Ultraviolet_Radiation_UVA_UVB_on_Germination_of_Carpospores_of_the_Red_Macroalga_Pyropia_acanthophora_var_brasiliensis_Rhodophyta_Bangiales_Morphological_Changes">Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes</a></div><div class="wp-workCard_item"><span>Photochemistry and Photobiology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units respo...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units responsible for giving rise to the diploid filamentous structure of this alga&#39;s life cycle. The present study assesses the anthropogenic impact of ultraviolet radiation (UVR) on morphology and ultrastructure, spore viability, autofluorescence of chloroplasts and the amount of intensity of ROS during the germination of carpospores. Carpospores were cultivated at 24 ± 1°C, 40 ± 10 μmol photons m−2 s−1 with photoperiod of 12 h and exposed to UVAR + UVBR for 3 h a day for 2 days with a daily dose of 5.05 J cm−2 for UVAR and 0.095 J cm−2 for UVBR. Samples were cultured for another five days exposed only to PAR in order to confirm their viability after the initial 2‐day exposure. Carpospores showed significant sensitivity to UVR exposure after only 48 h, including changes in developmental rate, overall morphology, cell organization and chloroplast autofluorescence. UVR exposure inhibited germ t...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d2bbfb8f38d38b0b69feab5498677142" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401286,"asset_id":112049918,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401286/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049918"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049918"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049918; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049917"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_"><img alt="Research paper thumbnail of {"__content__"=>"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).", "sup"=>{"__content__"=>"1"}}" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_">{"__content__"=>"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).", "sup"=>{"__content__"=>"1"}}</a></div><div class="wp-workCard_item"><span>Journal of phycology</span><span>, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Ocean warming is increasing and scientific predictions suggest a rise of up to 4°C in sea water t...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Ocean warming is increasing and scientific predictions suggest a rise of up to 4°C in sea water temperatures. The combination of a polluted and warmer environment may be detrimental for aquatic species, especially for primary producers such as seaweeds. This study investigated the potential for interactive effects of an increased seawater temperature in a copper-rich environment on the photosynthetic pigments and metabolic compounds of the red seaweed Gelidium floridanum. Seaweed samples were cultivated in a factorial design with temperature (24°C and 30°C), copper (0 and 3 μM), and time (7 and 14 d). The exposure of G. floridanum to copper and 30°C for 7 d resulted in a lower concentration of chlorophyll a, smaller phycobiliprotein rods and lower concentration of soluble sugars. After 14 d of cultivation, a higher concentration of chlorophyll a and soluble sugars could be observed on seaweeds cultivated under 30°C. The accumulation of carotenoids and the release of phenolic compoun...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049917"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049917"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049917; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049917]").text(description); $(".js-view-count[data-work-id=112049917]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049917; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049917']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=112049917]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049917,"title":"{\"__content__\"=\u003e\"Ocean warming and copper pollution: implications for metabolic compounds of the agarophyte Gelidium floridanum (Gelidiales, Rhodophyta).\", \"sup\"=\u003e{\"__content__\"=\u003e\"1\"}}","internal_url":"https://www.academia.edu/112049917/_content_Ocean_warming_and_copper_pollution_implications_for_metabolic_compounds_of_the_agarophyte_Gelidium_floridanum_Gelidiales_Rhodophyta_sup_content_1_","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049916"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049916/Comparative_study_of_the_effects_of_salinity_and_UV_radiation_on_metabolism_and_morphology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_"><img alt="Research paper thumbnail of Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401283/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049916/Comparative_study_of_the_effects_of_salinity_and_UV_radiation_on_metabolism_and_morphology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_">Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)</a></div><div class="wp-workCard_item"><span>Photosynthetica</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Increase of harmful radiation to the Earth's surface due to ozone depletion results in higher exp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Increase of harmful radiation to the Earth's surface due to ozone depletion results in higher exposure to harmful ultraviolet-B radiation (UV), while fluctuations in seawater salinity may alter water density, ionic concentration, nutrient uptake, and osmotic pressure. This study evaluated the effects of salinity and UV on metabolism and morphology of Acanthophora spicifera (M.Vahl) Børgesen. Water with 30 and 37 psu [g(salt) kg-1 (sea water)] was used for experiments during 7 d of exposure to UV (3 h per day). We demonstrated that UV treatment predisposed, irrespective of salinity, A. spicifera to a decrease in its growth rate and cell viability, as well as affected its morphological parameters. After exposure to PAR + UVA + UVB (PAB), samples showed structural changes and damage, such as increasing cell wall thickness and chloroplast disruption. Our results indicate that UV led to dramatic metabolic changes and cellular imbalances, but more remarkable changes were seen in samples exposed to high salinity.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a0241621d252f916af15c5084423d224" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401283,"asset_id":112049916,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401283/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049916"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049916"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049916; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049916]").text(description); $(".js-view-count[data-work-id=112049916]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049916; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049916']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "a0241621d252f916af15c5084423d224" } } $('.js-work-strip[data-work-id=112049916]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049916,"title":"Comparative study of the effects of salinity and UV radiation on metabolism and morphology of the red macroalga Acanthophora spicifera (Rhodophyta, Ceramiales)","internal_url":"https://www.academia.edu/112049916/Comparative_study_of_the_effects_of_salinity_and_UV_radiation_on_metabolism_and_morphology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401283,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401283/thumbnails/1.jpg","file_name":"s11099-017-0731-2.pdf","download_url":"https://www.academia.edu/attachments/109401283/download_file","bulk_download_file_name":"Comparative_study_of_the_effects_of_sali.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401283/s11099-017-0731-2-libre.pdf?1703233277=\u0026response-content-disposition=attachment%3B+filename%3DComparative_study_of_the_effects_of_sali.pdf\u0026Expires=1739828284\u0026Signature=XDYs5jmpnfqoJhcm~czv4-LwW9WKvalEj25BG2xjooQwzCSJdtDN7pGDkZizb2E-lYrz1WFjoP9RcayHGii9wMxCbZSHb7jKVj1hhVf06DJMR7viE3h3uy6AuD~pSd1MZtukTXwct2sNv6brrQoxIKY9OqEVn87~TKiGi5TIlUgm9Gb6WGYR3W-BLo0fi7F~ML0p8N6VAti01sU68KuHev~Nl6bmv735K1ZPJKFMRJMaVcWdSp-SrpH8-l70-V6f1HXKu6jwkRwZ3jORh9nLupA8~W72KcK8owPMufOZNQcFHTQpePENKEX3WxUfGLjVravUQegmle7cEpnV~7SgsQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049915"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049915/Effects_of_salinity_on_the_physiology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_"><img alt="Research paper thumbnail of Effects of salinity on the physiology of the red macroalga, Acanthophora spicifera (Rhodophyta, Ceramiales)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401260/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049915/Effects_of_salinity_on_the_physiology_of_the_red_macroalga_Acanthophora_spicifera_Rhodophyta_Ceramiales_">Effects of salinity on the physiology of the red macroalga, Acanthophora spicifera (Rhodophyta, Ceramiales)</a></div><div class="wp-workCard_item"><span>Acta Botanica Brasilica</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Salinity is an important abiotic factor since it is responsible for the local and/or regional dis...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Salinity is an important abiotic factor since it is responsible for the local and/or regional distribution of algae. In coastal regions, salinity changes with prevailing winds, precipitation and tide, and particularly in extreme intertidal conditions. Acanthophora spicifera is a red seaweed that occurs in the supratidal region in which changes in abiotic conditions occur frequently. Th is study evaluated the eff ects of salinity on the metabolism and morphology of A. spicifera. Algae were acclimatized under culture conditions with sterilized seawater for seven days. Experiments used diff erent salinities (15 to 50 psu) for seven days, followed by metabolic analyses. Th is study demonstrates that extreme salinities aff ect physiological parameters of A. spicifera, such as decrease in growth rate, as well as morphological parameters and concentrations of secondary metabolites. Acanthophora spicifera exhibited high tolerance to 25 to 40 psu, with little change in physiology, which favors the occurrence of this species in diverse environments. However, 15, 20, 45 and 50 psu were the most damaging and led to loss of biomass, depigmentation of apices, and the highest concentrations of antioxidant metabolites. Th e 50 psu treatment caused the greatest changes in general, greatly reducing a biomass and chlorophyll content, and facilitating the presence of endophytes.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d1b66befaf619210760eabe19bc0291e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401260,"asset_id":112049915,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401260/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049915"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049915"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049915; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049915]").text(description); $(".js-view-count[data-work-id=112049915]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049915; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049915']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049914"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049914/Physiological_morphological_and_ultrastructural_responses_to_exposure_to_ultraviolet_radiation_in_the_red_alga_Aglaothamnion_uruguayense_W_R_Taylor_"><img alt="Research paper thumbnail of Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. Taylor)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401288/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049914/Physiological_morphological_and_ultrastructural_responses_to_exposure_to_ultraviolet_radiation_in_the_red_alga_Aglaothamnion_uruguayense_W_R_Taylor_">Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. Taylor)</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2017</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In this study, we examined the effect of ultraviolet radiation (UV) at the thalli of Aglaothamnio...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">In this study, we examined the effect of ultraviolet radiation (UV) at the thalli of Aglaothamnion uruguayense (W.R. Taylor) N.E. Aponte, D.L. Ballantine & J.N. Norris exposed to two different conditions of radiation: PAR (control) and PAR ? UVA ? UVB for 3 h per day during 7 days. The effects of radiation on growth rates, photosynthetic pigments, cell viability, phenolic compounds and total soluble sugar and starch were analyzed. The morphology and the ultrastructure were also assessed. Algae were cultivated and then exposed to photosynthetically active radiation (PAR) at 14 W m-2 and PAR ? UVA (0.70 W m-2) ? UVB (0.35 W m-2) 3 h per day for 7 days. After exposure to PAR ? UVA ? UVB, A. uruguayense exhibited a 75% reduction in growth. Photosynthetic pigments, in particular, phycobiliproteins (allophycocyanin, phycocyanin and phycoerythrin), increased after exposure to PAR ? UVA ? UVB. UVR exposure changed the synthesis of carotenoids, including decreased of lutein by 67.1% and increased of b-carotene by 64.3% and of zeaxanthin by 23%. Phenolic compounds were reduced while flavonoids decreased by approximately 12.9% compared with samples exposed to PAR (control). Moreover, as determined by PAS, TEM and total starch extraction, the amount of starch grains decreased in algae exposed to UV. When observed under confocal microscopy, treated samples showed a significant reduction in the number and shape alteration of chloroplasts. TEM revealed changes in ultrastructure, including increased cell wall thickening and disorganization of cellulose microfibrils. Chloroplasts showed disrupted thylakoid membranes, damage to envelope membranes, and increased number of plastoglobuli. From these results, it can be concluded that UVB is a factor that negatively affects the growth and development of the macroalga A. uruguayense.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="ae042a6bb14d84e950c866ad4140de27" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401288,"asset_id":112049914,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401288/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049914"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049914"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049914; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049914]").text(description); $(".js-view-count[data-work-id=112049914]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049914; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049914']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "ae042a6bb14d84e950c866ad4140de27" } } $('.js-work-strip[data-work-id=112049914]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049914,"title":"Physiological, morphological and ultrastructural responses to exposure to ultraviolet radiation in the red alga Aglaothamnion uruguayense (W.R. 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To accomplish this, S. cymosum samples were cultivated under photosynthetic active radiation (PAR) and Cd (0, 0.1, 0.2, 0.4 and 0.8 mg L(-1)) during 7 and 14 days in laboratory-controlled conditions (0 mg L(-1) Cd at both exposure times as control). Seaweeds had high retention capacity (over 90 %) for both exposure times. Growth rates showed significant increases by 14 days, especially for 0.1 and 0.4 mg L(-1) Cd. Photosynthetic parameters were unaffected by Cd treatments. Chlorophyll contents were present in higher concentrations for all Cd treatments compared to respective control. Carotenoid profile showed significant differences in total composition and proportion of fucoxanthin and β-carotene, and no lutein was detected at 14 days. Phenolic and flavonoid compounds showed major accumulation at 14 days. Transmission electron microscopy (TEM) analyses presented major alteratio...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="29a211cf3e72d7323b61ffe7344928a2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401309,"asset_id":112049913,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401309/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049913"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049913"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049913; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049913]").text(description); $(".js-view-count[data-work-id=112049913]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049913; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049913']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "29a211cf3e72d7323b61ffe7344928a2" } } $('.js-work-strip[data-work-id=112049913]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049913,"title":"The brown seaweed Sargassum cymosum: changes in metabolism and cellular organization after long-term exposure to cadmium","internal_url":"https://www.academia.edu/112049913/The_brown_seaweed_Sargassum_cymosum_changes_in_metabolism_and_cellular_organization_after_long_term_exposure_to_cadmium","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401309,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401309/thumbnails/1.jpg","file_name":"s00709-016-0992-920231222-1-tdldi2.pdf","download_url":"https://www.academia.edu/attachments/109401309/download_file","bulk_download_file_name":"The_brown_seaweed_Sargassum_cymosum_chan.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401309/s00709-016-0992-920231222-1-tdldi2-libre.pdf?1703233281=\u0026response-content-disposition=attachment%3B+filename%3DThe_brown_seaweed_Sargassum_cymosum_chan.pdf\u0026Expires=1739828284\u0026Signature=cmIs79Xzip3frU2VFiBJuT9l48vE7t~TNs3SpNYuR6SLjqSrZrXMtEQ-WHzsrzfny2yTQmMhd13WuvMaYUGrfpZghkQtDBJwJE1yWdmBRKDRHZIlBGv-~0tsPWEAhYSDeYdJLv6SqbxTYM1a3U-EZulD9MyxE3ChYNt8Q4P9CIHGc1XXjOwJHTfTZtE-6TSz0nd30KV5Rv9~~1kH0yrx835GTmWvJGtS-hYdqGUWc6ipqmL7CaErYqDkMYVsyIBfKsD3hBSnTL6XpaWny0gHK5atSV81~chaz5MlPgnRP0SC3pCIDQgRY45gD7zg9gi6MAm3Diy6WGGgQj3ngRWfag__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049912"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations"><img alt="Research paper thumbnail of In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations" class="work-thumbnail" src="https://attachments.academia-assets.com/109401282/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations">In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations</a></div><div class="wp-workCard_item"><span>Chemosphere</span><span>, Jan 15, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Refined fuels have considerable share of pollution of marine ecosystems. Gasoline is one of the m...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Refined fuels have considerable share of pollution of marine ecosystems. Gasoline is one of the most consumed fuel worldwide, but its effects on marine benthic primary producers are poorly investigated. In this study, Ulva lactuca was chosen as a biological model due to its cosmopolitan nature and tolerance to high levels and wide range of xenobiotics and our goal was to evaluate the effects of gasoline on ultrastructure and metabolism of that seaweed. The experimental design consisted of in vitro exposure of U. lactuca to four concentrations of gasoline (0.001%, 0.01%, 0.1%, and 1.0%, v/v) over 30 min, 1 h, 12 h, and 24 h, followed by cytochemical, SEM, and biochemical analysis. Increase in the number of cytoplasmic granules, loss of cell turgor, cytoplasmic shrinkage, and alterations in the mucilage were some of the ultrastructural alterations observed in thalli exposed to gasoline. Decrease in carotenoid and polyphenol contents, as well as increase of soluble sugars and starch co...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="b1cef7fd2db880075c9fe2d766fc7ba1" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401282,"asset_id":112049912,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401282/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049912"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049912"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049912; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049912]").text(description); $(".js-view-count[data-work-id=112049912]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049912; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049912']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "b1cef7fd2db880075c9fe2d766fc7ba1" } } $('.js-work-strip[data-work-id=112049912]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049912,"title":"In vitro exposure of Ulva lactuca Linnaeus (Chlorophyta) to gasoline - Biochemical and morphological alterations","internal_url":"https://www.academia.edu/112049912/In_vitro_exposure_of_Ulva_lactuca_Linnaeus_Chlorophyta_to_gasoline_Biochemical_and_morphological_alterations","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401282,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401282/thumbnails/1.jpg","file_name":"document_38982_1.pdf","download_url":"https://www.academia.edu/attachments/109401282/download_file","bulk_download_file_name":"In_vitro_exposure_of_Ulva_lactuca_Linnae.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401282/document_38982_1-libre.pdf?1703233271=\u0026response-content-disposition=attachment%3B+filename%3DIn_vitro_exposure_of_Ulva_lactuca_Linnae.pdf\u0026Expires=1739828284\u0026Signature=MnpXffe9hZQ3Mb9PNXoAEEEup817kWXgaeMBdmmkQblFpBhkFHBAio7I2lqnV4OAWxfQrCuPrvdZ3V0Gh7MaaKyzAbrfq1dWgtAEecuWU-o9TIwp9ZPTJlt782ooG21R5wd7Xc7~b9w6KxgSaqfYGr51cYOhL6AG3ekn9qXZZ-IyhdJHmqPSoe2ipvxsechKfCEFYIL~staW3OBo0VQ0jUiAtSpmWzpZCE8A22tHwXlgFZ4NdY9NV-7Y9shLwvwwOduRsbFNwQeE3eimygPP4UPCCg3bCweFb1d4l7SLFlmmb1-qfcnuiZ0~ITWch0rCViN~FAZ6z7qZsVZH~bKOig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049911"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049911/Effects_of_cadmium_on_the_morphology_pigments_and_ultrastructure_of_Palisada_flagellifera_Ceramiales_Rhodophyta_cultivated_in_vitro"><img alt="Research paper thumbnail of Effects of cadmium on the morphology, pigments, and ultrastructure of Palisada flagellifera (Ceramiales, Rhodophyta) cultivated in vitro" class="work-thumbnail" src="https://attachments.academia-assets.com/109401290/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049911/Effects_of_cadmium_on_the_morphology_pigments_and_ultrastructure_of_Palisada_flagellifera_Ceramiales_Rhodophyta_cultivated_in_vitro">Effects of cadmium on the morphology, pigments, and ultrastructure of Palisada flagellifera (Ceramiales, Rhodophyta) cultivated in vitro</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study aimed to compare the effects of increasing concentrations of cadmium (Cd) on the growt...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study aimed to compare the effects of increasing concentrations of cadmium (Cd) on the growth rates, content of photosynthetic pigments, and ultrastructure of Palisada flagellifera (J. Agardh) K. W. Nam (Ceramiales, Rhodophyta). Plants were cultivated under photosynthetically active radiation (PAR) of 70 lmol photons m-2 s-1 with 0 (control), 2.5, 5.0, 7.5, 10 20, 40, and 60 lM of cadmium (CdCl 2) for 7 days. Subsequently, the apical segments of P. flagellifera were analyzed under transmission microscopy, and both growth rates and photosynthetic pigments were measured. Growth rates in P. flagellifera samples gradually decreased with the increasing concentration of Cd in culture medium. Palisada flagellifera exposed to 20, 40, and 60 lM of Cd showed thallus bleaching and partial necrosis. Damage to thylakoid membranes and discoloration, as well as reduced phycobiliproteins, were more evident at concentrations of Cd higher than 40 lM. Palisada flagellifera samples treated with Cd also showed cell wall thickness triggered by the activation of mechanical defense mechanisms to prevent entry of Cd into the cytoplasm, as well as the increase of chlorophyll a content. Overall, these results indicate that exposure to cadmium in concentrations exceeding 40 lM is sublethal to P. flagellifera.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="84ec172bbf10f0ec4cc78a97527f8ecb" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401290,"asset_id":112049911,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401290/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049911"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049911"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049911; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=112049911]").text(description); $(".js-view-count[data-work-id=112049911]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 112049911; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='112049911']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-a9bf3a2bc8c89fa2a77156577594264ee8a0f214d74241bc0fcd3f69f8d107ac.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "84ec172bbf10f0ec4cc78a97527f8ecb" } } $('.js-work-strip[data-work-id=112049911]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049911,"title":"Effects of cadmium on the morphology, pigments, and ultrastructure of Palisada flagellifera (Ceramiales, Rhodophyta) cultivated in vitro","internal_url":"https://www.academia.edu/112049911/Effects_of_cadmium_on_the_morphology_pigments_and_ultrastructure_of_Palisada_flagellifera_Ceramiales_Rhodophyta_cultivated_in_vitro","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401290,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401290/thumbnails/1.jpg","file_name":"s40415-016-0254-220231222-1-fylnob.pdf","download_url":"https://www.academia.edu/attachments/109401290/download_file","bulk_download_file_name":"Effects_of_cadmium_on_the_morphology_pig.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401290/s40415-016-0254-220231222-1-fylnob-libre.pdf?1703233276=\u0026response-content-disposition=attachment%3B+filename%3DEffects_of_cadmium_on_the_morphology_pig.pdf\u0026Expires=1739828284\u0026Signature=LT4IyE-J3HfPrJPvfX2S9OVpnYD~PN2pVzC~ryDt5a3JVXG6H483iqfEihYQeYwFsk56wqQkvIW7SdVm5zzpGSS3ZO7VwCTf1i1ouT4I5-d5~R6rpuBoMrR0V11vom2jdDOw8MgW~5HMq1NnXQ2KZZOrhHQQq7wfd3-ph5aa2MD3f0eXiK85UZHogDY7htxK7pHCUZuT8OVB-4XgmBiIvDMYg6OJQpheN1EHf3G2yW~yUmm6kA~RIoXtaFAYajvoZ9cD1bouU3-wjEfb3Ss7JGBVVrfeudLqLYptLLaxTkdGc5iJWVHUDApZgdNYnaF4ssJkhOapu095WKDCzoy32A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049910"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049910/Effects_of_UV_B_radiation_on_germlings_of_the_red_macroalga_Nemalion_helminthoides_Rhodophyta_"><img alt="Research paper thumbnail of Effects of UV-B radiation on germlings of the red macroalga Nemalion helminthoides (Rhodophyta)" class="work-thumbnail" src="https://attachments.academia-assets.com/109401281/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049910/Effects_of_UV_B_radiation_on_germlings_of_the_red_macroalga_Nemalion_helminthoides_Rhodophyta_">Effects of UV-B radiation on germlings of the red macroalga Nemalion helminthoides (Rhodophyta)</a></div><div class="wp-workCard_item"><span>Journal of Microscopy and Ultrastructure</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Studies have clearly demonstrated the damaging effects of UV-B exposure on macroalgae, but few ha...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Studies have clearly demonstrated the damaging effects of UV-B exposure on macroalgae, but few have reported the impact of UV-B on spore germination and development at juvenile stages. Therefore, this work aimed to analyze the effects of UV-B radiation on germlings of Nemalion helminthoides at the tetrasporophytic phase. To accomplish this, germlings of N. helminthoides were cultivated in the laboratory and separated into two groups. The control group was exposed onlyto photosynthetic radiation, while the treatment group was exposed to photosynthetic radiation + UV-B for 2 hours during a period of 12 days. Control germlings showed increasing cellular proliferation and accumulation of reserve substances, as well as intense ramification in the last observed stages between 9 days and 12 days of development. Moreover, the chloroplasts presented a typical globular pyrenoid, profusely traversed by thylakoid membranes. Treated germlings, by contrast, showed intracellular damage, such as cell wall thickness, loss of chloroplast organization, changes in mitochondrial cristae, and increasing atrophy of the Golgi bodies. Additionally, changes in developmental patterns were observed, including loss of polarity in the first divisions of carpospores and abnormal stem ramification. The quantification of autofluorescence data coincided with the ultrastructural changes observed in the chloroplasts of cells exposed to UV-B. It can be concluded that exposure to radiation changed the developmental pattern and morphology of the germlings of N. helminthoides.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="cd4d31c24c36f1aa92c91fb6b5a6d30e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401281,"asset_id":112049910,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401281/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049910"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049910"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049910; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049909"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities"><img alt="Research paper thumbnail of Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities" class="work-thumbnail" src="https://attachments.academia-assets.com/109401284/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities">Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities</a></div><div class="wp-workCard_item"><span>Journal of Applied Phycology</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The in vitro effect of cadmium (Cd) on apical segments of the red macroalga Pterocladiella capill...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">The in vitro effect of cadmium (Cd) on apical segments of the red macroalga Pterocladiella capillacea was examined. Over a period of 7 days, the segments were cultivated with a combination of different salinities (25, 35, and 45 psu) and Cd concentrations ranging from 0.17 to 0.70 ppm. This study aimed to evaluate the effects of Cd exposure at various salinities on profiles of carotenoids amino acids and phenolic compounds. Carotenoid profile of control (0 ppm Cd) and Cdtreated plants of P. capillacea showed the presence of lutein, zeaxanthin, β-cryptoxanthin, α-carotene, trans-β-carotene and cis-β-carotene. Significant increase was found for almost all carotenoids, 0.35 ppm Cd + 25 psu, 0.70 ppm Cd + 25 psu, and 0 ppm Cd + 45 psu. Total phenolic compounds of P. capillacea had an overall decrease with treatments of Cd and 25 or 45 psu. Twenty essential amino acids were quantified in P. capillacea samples. At 0 ppm Cd and using baseline control of 35 psu, low and high salinity levels (25 and 45 psu, respectively) significantly altered total amino acid content. Apparently, salinity plays a greater role in amino acid response than Cd concentration. Therefore, more studies with intensified salinity stress over long-term exposure could confirm the major effect of the suggested treatment on this species.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="5577e1fcb5f3726df050d928d7fbaa8d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401284,"asset_id":112049909,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401284/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049909"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049909"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049909; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "5577e1fcb5f3726df050d928d7fbaa8d" } } $('.js-work-strip[data-work-id=112049909]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":112049909,"title":"Profiles of carotenoids and amino acids and total phenolic compounds of the red alga Pterocladiella capillacea exposed to cadmium and different salinities","internal_url":"https://www.academia.edu/112049909/Profiles_of_carotenoids_and_amino_acids_and_total_phenolic_compounds_of_the_red_alga_Pterocladiella_capillacea_exposed_to_cadmium_and_different_salinities","owner_id":33617990,"coauthors_can_edit":true,"owner":{"id":33617990,"first_name":"Debora","middle_initials":null,"last_name":"Pereira","page_name":"DeboraPereira","domain_name":"ufsc","created_at":"2015-08-04T17:40:29.347-07:00","display_name":"Debora Pereira","url":"https://ufsc.academia.edu/DeboraPereira"},"attachments":[{"id":109401284,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/109401284/thumbnails/1.jpg","file_name":"s10811-015-0737-820231222-1-ng6os8.pdf","download_url":"https://www.academia.edu/attachments/109401284/download_file","bulk_download_file_name":"Profiles_of_carotenoids_and_amino_acids.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/109401284/s10811-015-0737-820231222-1-ng6os8-libre.pdf?1703233271=\u0026response-content-disposition=attachment%3B+filename%3DProfiles_of_carotenoids_and_amino_acids.pdf\u0026Expires=1739828284\u0026Signature=HZZBN3zh5qLDPOIr8uHv-d~HkxdITBPXhFoRGgYpS7pEvdAIMUNPNEgPw0cDabHPHtPPX6Bq81nYfr4GteBpI4pb0yhItEvOgGTxVCih51PjzgC0vcvRY4dT~PxJNiAiKahw6juGd5U1~zEZE9i73byqcrU~y5feOGMzYGTOTH3W7pGkLIjfjwrlBDWIpFGq00Yxn9usqTJ0n6vDVU6S82dhxEZV2Kd-mAcoyidVpxuLu1y6qMffBA4oTKn~ayzLmnIH-sn2xlIY6LvrN8WWCEAQz5i8ZSWXjIeRkYSP93tJdbhB5VgnvGyesEes4GLkIAThJ-4fKFM7VOex1hxIvw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="112049908"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/112049908/Influence_of_cadmium_and_salinity_in_the_red_alga_Pterocladiella_capillacea_cell_morphology_photosynthetic_performance_and_antioxidant_systems"><img alt="Research paper thumbnail of Influence of cadmium and salinity in the red alga Pterocladiella capillacea: cell morphology, photosynthetic performance and antioxidant systems" class="work-thumbnail" src="https://attachments.academia-assets.com/109401289/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/112049908/Influence_of_cadmium_and_salinity_in_the_red_alga_Pterocladiella_capillacea_cell_morphology_photosynthetic_performance_and_antioxidant_systems">Influence of cadmium and salinity in the red alga Pterocladiella capillacea: cell morphology, photosynthetic performance and antioxidant systems</a></div><div class="wp-workCard_item"><span>Brazilian Journal of Botany</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This study aimed to determine the effects of cadmium (Cd) on apical segments of Pterocladiella ca...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This study aimed to determine the effects of cadmium (Cd) on apical segments of Pterocladiella capillacea (S. G. Gmelin) Santelices & Hommersand. For 7 days, these segments were cultivated under different salinities (25, 35 and 45 psu) and different Cd concentrations (0.17-0.70 ppm Cd). The samples were processed for light and confocal microscopy to assess photosynthetic performance, CHN levels, protein levels, as well as NADH dehydrogenase, and catalase activities. Plants cultivated at 0.70 ppm showed a reduction in the number of floridean starch grains by cytochemical analysis. Chloroplast autofluorescence decreased with cadmium exposure, while the kinetic patterns of ETR-light curves showed no significant differences among the treatments. Treatments showed variations in CNH levels, but no clear trend was observed. The content of total soluble protein and mitochondrial NADH dehydrogenase activity varied significantly, depending on the cadmium concentration and salinity levels. However, catalase activity decreased only in samples exposed to both cadmium and salinity treatments. Based on these lines of evidence, the present results showed a higher sensitivity of P. capillacea to increasing levels of cadmium exposure. When intermediate concentrations of cadmium were associated with low salinity values, its toxic effect on the model alga was intensified. Abiotic factors interfered with the physiological ability of the alga to protect itself from metal toxicity, resulting in metabolic compromise and reduction of primary productivity, i.e., photosynthesis and carbohydrate accumulation in the form of starch granules.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="4f535c485434d3f2db76967347625ce6" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":109401289,"asset_id":112049908,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/109401289/download_file?s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="112049908"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="112049908"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 112049908; 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