Search results for: Ostreopsis cf. ovata

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cf. ovata</title> <meta name="description" content="Search results for: Ostreopsis cf. ovata"> <meta name="keywords" content="Ostreopsis cf. ovata"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Ostreopsis cf. ovata"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 2</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ostreopsis cf. ovata</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Multiannual Trends of Toxic and Potentially Toxic Microalgae (Ostreopsis cf. ovata, Prorocentrum lima, and Coolia monotis) in Sfax Coasts (North of Gabes Gulf, Tunisia)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moncer%20Malika">Moncer Malika</a>, <a href="https://publications.waset.org/abstracts/search?q=Ben%20Brahim%20Mounir"> Ben Brahim Mounir</a>, <a href="https://publications.waset.org/abstracts/search?q=Bel%20Hassen%20Malika"> Bel Hassen Malika</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Asma"> Hamza Asma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> During the last decades, microalgae communities have presented significant changes in their structure and taxa composition along the Mediterranean littoral shallow waters. The main purpose of this work was to evaluate possible changes, over a 17-year scale (1997–2013), in the diversity and abundance of three toxic and potentially toxic microalgae related to changes in environmental parameters on Sfax coasts, a pole of shellfish production in Tunisia. In this 17-year span, a chronological series of data showed that a clear disparity from one year to another was observed in the abundance of studied species. The distribution of these species has been subjected to a seasonal cycle. The studied microalgae, especially Prorocentrum lima, seem to have significant relationships with many physicochemicaland meteorological parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=long-term%20monitoring%20HABs" title="long-term monitoring HABs">long-term monitoring HABs</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-chemical%20parameters" title=" physico-chemical parameters"> physico-chemical parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=meteorological%20parameters" title=" meteorological parameters"> meteorological parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=Prorocentrum%20lima" title=" Prorocentrum lima"> Prorocentrum lima</a>, <a href="https://publications.waset.org/abstracts/search?q=Ostreopsis%20cf.%20ovata" title=" Ostreopsis cf. ovata"> Ostreopsis cf. ovata</a>, <a href="https://publications.waset.org/abstracts/search?q=Coolia%20monotis" title=" Coolia monotis"> Coolia monotis</a> </p> <a href="https://publications.waset.org/abstracts/163619/multiannual-trends-of-toxic-and-potentially-toxic-microalgae-ostreopsis-cf-ovata-prorocentrum-lima-and-coolia-monotis-in-sfax-coasts-north-of-gabes-gulf-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163619.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">133</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Indirect Regeneration and Somatic Embryogenesis from Leaf and Stem Explants of Crassula ovata 42-45 (Mill.) Druce: An Ornamental Medicinal Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20B.%20A.%20Ahmed">A. B. A. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20I.%20Amar"> D. I. Amar</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20M.%20Taha"> R. M. Taha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research aims to investigate callus induction, somatic embryogenesis and indirect plant regeneration of Crassula ovata (Mill.) Druce – the famous ornamental plant. Experiment no.1: Callus induction was obtained from leaf and stem explants on Murashige and Skoog (MS) medium supplemented with various plant growth regulators (PGRs). Effects of different PGRs, plant regeneration and subsequent plantlet conversion were also assessed. Indirect plant regeneration was achieved from the callus of stem explants by the addition of 1.5 mg/L Kinetin (KN) alone. Best shoot induction was achieved (6.5 shoots/per explant) after 60 days. For successful rooting, regenerated plantlets were sub-cultured on the same MS media supplemented with 1.5 mg/L KN alone. The rooted plantlets were acclimatized and the survival rate was 90%. Experiment no.2: Results revealed that 0.5 mg/L 2,4-D alone and in combination with 1.0 mg/L 6-Benzyladenine (BA) gave 89.8% callus from the stem explants as compared to leaf explants. Callus proliferation and somatic embryo formation were also evaluated by ‘Double Staining Method’ and different stages of somatic embryogenesis were revealed by scanning electron microscope. Full Strength MS medium produced the highest number (49.6%) of cotyledonary stage somatic embryos (SEs). Mature cotyledonary stage SEs developed into plantlets after 12 weeks of culture. Well-rooted plantlets were successfully acclimatized at the survival rate of 85%. Indirectly regenerated plants did not show any detectable variation in morphological and growth characteristics when compared with the donor plant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=callus%20induction" title="callus induction">callus induction</a>, <a href="https://publications.waset.org/abstracts/search?q=indirect%20plant%20regeneration" title=" indirect plant regeneration"> indirect plant regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20staining" title=" double staining"> double staining</a>, <a href="https://publications.waset.org/abstracts/search?q=somatic%20embryogenesis" title=" somatic embryogenesis"> somatic embryogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=Crassula%20ovata" title=" Crassula ovata"> Crassula ovata</a> </p> <a href="https://publications.waset.org/abstracts/13777/indirect-regeneration-and-somatic-embryogenesis-from-leaf-and-stem-explants-of-crassula-ovata-42-45-mill-druce-an-ornamental-medicinal-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13777.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">385</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 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Search results for: Ostreopsis cf. ovata