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Narrow mycorrhizal specialization and its effect on early development in the Mediterranean orchid Orchis italica | Botanical Journal of the Linnean Society | Oxford Academic

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<div class="access-state-logos all-viewports"> <span class="journal-info__format-label">Journal Article</span> </div> <div class="widget-items"> <div class="title-wrap"> <h1 class="wi-article-title article-title-main accessible-content-title at-articleTitle"> Narrow mycorrhizal specialization and its effect on early development in the Mediterranean orchid <em>Orchis italica</em> <i class='' title='' ></i> </h1> <a href="#no-access-message" class="get-access get-access-jumplink at-get-access-jumplink js-no-access-jumplink"> <span class="get-access-text">Get access</span> <img class='get-access-icon' src='/UI/app/svg/chevron-right-white.svg' alt='Arrow' aria-hidden='true'> </a> </div> <div class="wi-authors at-ArticleAuthors"> <div class="al-authors-list"> <span class="al-author-name-more js-flyout-wrap"> <button type="button" class="linked-name js-linked-name-trigger btn-as-link">Marco G Balducci</button><span class='delimiter'>, </span> <span class="al-author-info-wrap arrow-up"> <div class="info-card-author authorInfo_OUP_Abstract_ArticleTop_Info_Widget"> <div class="name-role-wrap"> <div class="info-card-name"> Marco G Balducci <span class="info-card-footnote"><span class="xrefLink" id="jumplink-c1"></span><a href="javascript:;" reveal-id="c1" data-open="c1" class="link link-ref link-reveal xref-default"><!----></a></span> </div> </div> <div class="info-card-affilitation"> <div class="aff"><div class="institution">Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo</div>, <div class="addr-line">Naples 80126</div>, <div class="country">Italy</div></div> </div> <div class="info-author-correspondence"> <div content-id="c1">Corresponding author: Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo, Naples 80126, Italy. E-mail: <a href="mailto:marcogiuseppe.balducci@unina.it" target="_blank">marcogiuseppe.balducci@unina.it</a></div> </div> <div class="info-card-location"> <a id="contrib-orcid-0000-0001-7303-0727" href="https://orcid.org/0000-0001-7303-0727"> <img class="orchid-icon" alt="ORCID logo" aria-hidden="true" src="//oup.silverchair-cdn.com/Themes/Silver/app/img/mini-icon.png"/>&nbsp;&nbsp;https://orcid.org/0000-0001-7303-0727 </a> </div> <div class="info-card-search-label"> Search for other works by this author on: </div> <div class="info-card-search info-card-search-internal"> <a href="/botlinnean/search-results?f_Authors=Marco+G+Balducci" rel="nofollow">Oxford Academic</a> </div> <div class="info-card-search info-card-search-google"> <a href="http://scholar.google.com/scholar?q=author:%22Balducci Marco G%22">Google Scholar</a> </div> </div> </span> </span> <span class="al-author-name-more js-flyout-wrap"> <button type="button" class="linked-name js-linked-name-trigger btn-as-link">Jacopo Calevo</button><span class='delimiter'>, </span> <span class="al-author-info-wrap arrow-up"> <div class="info-card-author authorInfo_OUP_Abstract_ArticleTop_Info_Widget"> <div class="name-role-wrap"> <div class="info-card-name"> Jacopo Calevo </div> </div> <div class="info-card-affilitation"> <div class="aff"><div class="institution">Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo</div>, <div class="addr-line">Naples 80126</div>, <div class="country">Italy</div></div> </div> <div class="info-card-location"> <a id="contrib-orcid-0000-0002-1717-2365" href="https://orcid.org/0000-0002-1717-2365"> <img class="orchid-icon" alt="ORCID logo" aria-hidden="true" src="//oup.silverchair-cdn.com/Themes/Silver/app/img/mini-icon.png"/>&nbsp;&nbsp;https://orcid.org/0000-0002-1717-2365 </a> </div> <div class="info-card-search-label"> Search for other works by this author on: </div> <div class="info-card-search info-card-search-internal"> <a href="/botlinnean/search-results?f_Authors=Jacopo+Calevo" rel="nofollow">Oxford Academic</a> </div> <div class="info-card-search info-card-search-google"> <a href="http://scholar.google.com/scholar?q=author:%22Calevo Jacopo%22">Google Scholar</a> </div> </div> </span> </span> <span class="al-author-name-more js-flyout-wrap"> <button type="button" class="linked-name js-linked-name-trigger btn-as-link">Karl J Duffy</button><span class='delimiter'></span> <span class="al-author-info-wrap arrow-up"> <div class="info-card-author authorInfo_OUP_Abstract_ArticleTop_Info_Widget"> <div class="name-role-wrap"> <div class="info-card-name"> Karl J Duffy </div> </div> <div class="info-card-affilitation"> <div class="aff"><div class="institution">Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant’Angelo</div>, <div class="addr-line">Naples 80126</div>, <div class="country">Italy</div></div> </div> <div class="info-card-location"> <a 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scrollto-destination=491052456 id="491052456" class="abstract-title js-splitscreen-abstract-title" >Abstract</h2> <section class="abstract"><p class="chapter-para">The contribution of individual orchid mycorrhizal (OrM) fungi to orchid germination is poorly understood. We isolated <em>Tulasnella</em> OrM fungi from 11 populations representing nine Italian regions associated with the orchid <em>Orchis italica</em>. We performed <em>in vitro</em> germination experiments using both single and two OrM isolate combinations of <em>Tulasnella</em> and <em>Ceratobasidium</em> isolates found in <em>O. italica</em> and co-occurring orchids. We performed an <em>in situ</em> reciprocal translocation experiment of <em>O. italica</em> seeds in two populations and we experimentally planted seeds into two unoccupied sites to test whether the presence of suitable OrM may limit its distribution. <em>In vitro</em>, <em>Tulasnella</em> isolates initiated germination, but only two isolates resulted in seedling development, while seeds did not germinate in the presence of <em>Ceratobasidium</em> isolates. Combinations of two <em>Tulasnella</em> isolates had lower germination rates compared to single isolates. Reciprocal translocations revealed that seeds from the same population had higher germination rates. Protocorms developed in one unoccupied site, with the associated fungus identified as <em>Tulasnella</em> spp. These results suggest that <em>Tulasnella</em> vary in their efficacy in seed germination and <em>O. italica</em> has a narrow specialization on <em>Tulasnella</em>. Such information is important for understanding the range limits of orchids and their ecological dependency on OrM fungi.</p></section> <div class="article-metadata-panel clearfix at-ArticleMetadata"></div> <div class="kwd-group"><a class="kwd-part kwd-main" href="javascript:;" data-keyword="&quot;in vitro experiments&quot;"><em>in vitro</em> experiments</a>, <a class="kwd-part kwd-main" href="javascript:;" data-keyword="&quot;orchid mycorrhizal fungi&quot;">orchid mycorrhizal fungi</a>, <a class="kwd-part kwd-main" href="javascript:;" data-keyword="&quot;Orchis italica&quot;"><em>Orchis italica</em></a>, <a class="kwd-part kwd-main" href="javascript:;" data-keyword="mutualism">mutualism</a>, <a class="kwd-part kwd-main" href="javascript:;" data-keyword="&quot;reciprocal translocation&quot;">reciprocal translocation</a>, <a class="kwd-part kwd-main" href="javascript:;" data-keyword="Tulasnella"><em>Tulasnella</em></a></div> <!-- /foreach in Model.Sections --> <div class="widget widget-ArticlePubStateInfo widget-instance-OUP_ArticlePubStateInfo"> </div> <div class="article-metadata-standalone-panel clearfix"></div> <div class="copyright copyright-statement">© The Author(s) 2024. 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