{"id":2955,"date":"2018-07-16T13:24:14","date_gmt":"2018-07-16T11:24:14","guid":{"rendered":"https:\/\/ist.blogs.inra.fr\/afs\/?p=2955"},"modified":"2018-07-16T13:24:14","modified_gmt":"2018-07-16T11:24:14","slug":"selection-of-arbuscular-mycorrhizal-fungal-strains-to-improve-casuarina-equisetifolia-l-and-casuarina-glauca-sieb-tolerance-to-salinity","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2018\/07\/16\/selection-of-arbuscular-mycorrhizal-fungal-strains-to-improve-casuarina-equisetifolia-l-and-casuarina-glauca-sieb-tolerance-to-salinity\/","title":{"rendered":"Selection of arbuscular mycorrhizal fungal strains to improve Casuarina equisetifolia L. and Casuarina glauca Sieb. tolerance to salinity"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><p>Selection of the best salt-tolerant combination of <em>Casuarina sp<\/em>. and arbuscular mycorrhizal fungi (AMF) is one of the key criteria for successful setup of saline land rehabilitation program.<\/p>\n<p><strong>Context<\/strong> Land salinization is a serious problem worldwide that mainly leads to soil degradation and reduces crop productivity. These degraded areas could be rehabilitated by planting salt-tolerant species like <em>Casuarina glauca<\/em> Sieb. and <em>Casuarina equisetifolia<\/em> L. These are pioneer plants, able to form symbiotic associations with arbuscular mycorrhizal fungi (AMF), ectomycorrhizal fungi (EMF), and nitrogen-fixing bacteria.<br \/>\n<strong>Aims<\/strong> The aim of this study was to select the highest salt-tolerant combination of Casuarina\/AMF that can be used for the rehabilitation of lands degraded by salinity.<br \/>\n<strong>Methods<\/strong> <em>C. equisetifolia<\/em> and <em>C. glauca<\/em> were grown in sandy sterile soil in the greenhouse and inoculated separately with <em>Rhizophagus fasciculatus<\/em> (Thaxt.) C. Walker &amp; A. Sch\u00fc\u00dfler, <em>Rhizophagus aggregatus<\/em> (N.C. Schenck &amp; G.S. Sm.) C. Walker, and <em>Rhizophagus intraradices<\/em> (N.C. Schenck &amp; G.S. Sm.) C. Walker &amp; A. Sch\u00fc\u00dfler. After confirming the establishment of a symbiosis, the plants were watered with gradually increasing concentrations of saline solution. After harvest, size and biomass of the seedlings, root colonization by AMF, and AMF metabolic activities were evaluated.<br \/>\n<strong>Results<\/strong> A larger growth was obtained in the two species when the individuals were inoculated with <em>R. fasciculatus<\/em>. Root colonization rates did not differ among fungal species, but fungal metabolic activities were higher in mycorrhizal roots of <em>C. glauca<\/em> plants inoculated with <em>R. fasciculatus<\/em>.<br \/>\n<strong>Conclusion<\/strong> Among the three mycorrhizal fungi, <em>R. fasciculatus<\/em> was more efficient in association with <em>Casuarinaceae<\/em> species under salt stress. Our results suggest that selection of appropriate fungal strains is crucial to improve plant performance in saline soils.<\/p>\n<p>Keywords<br \/>\nSalinity, Arbuscular mycorrhizal fungi, <em>C. glauca<\/em>, <em>C. equisetifolia<\/em>, Rehabilitation, Salt-affected land<\/p>\n<div class='altmetric-embed' data-badge-type='donut' data-doi='10.1007\/s13595-018-0747-1'  style='float: right; ' ><\/div>\n<p>Publication<br \/>\nDjighaly, P.I., Diagne, N., Ngom, M. et al. Annals of Forest Science (2018) 75: 72.<br \/>\n<a href=\"https:\/\/doi.org\/10.1007\/s13595-018-0747-1\">https:\/\/doi.org\/10.1007\/s13595-018-0747-1<\/a><\/p>\n<p>For the read-only version of the full text: <a href=\"https:\/\/rdcu.be\/23wl\">https:\/\/rdcu.be\/23wl<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Selection of the best salt-tolerant combination of Casuarina sp. and arbuscular mycorrhizal fungi (AMF) is one of the key criteria for successful setup of saline land rehabilitation program. Context Land salinization is a serious problem worldwide that mainly leads to soil degradation and reduces crop productivity. These degraded areas could be rehabilitated by planting salt-tolerant [&hellip;]<\/p>\n","protected":false},"author":94,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,15],"tags":[],"class_list":["post-2955","post","type-post","status-publish","format-standard","hentry","category-article-type","category-research-paper","cat-14-id","cat-15-id"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/2955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/94"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=2955"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/2955\/revisions"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=2955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=2955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=2955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}