{"id":6387,"date":"2016-05-26T16:14:29","date_gmt":"2016-05-26T16:14:29","guid":{"rendered":"https:\/\/mycor.iam.inrae.fr\/IAM\/?p=6387"},"modified":"2016-05-26T16:14:29","modified_gmt":"2016-05-26T16:14:29","slug":"article-fems-microbiology-ecology","status":"publish","type":"post","link":"https:\/\/mycor.iam.inrae.fr\/IAM\/?p=6387","title":{"rendered":"Article: FEMS Microbiology Ecology"},"content":{"rendered":"<p><a href=\"http:\/\/femsec.oxfordjournals.org\/content\/early\/2016\/05\/18\/femsec.fiw107.abstract\">Role of secondary metabolites in the interaction between Pseudomonas fluorescens and soil microorganisms under iron limited conditions\u00a0<\/a>A Deveau, H Gross, B Palin, S Mehnaz, M Schnepf, P Leblond, &#8230; FEMS Microbiology Ecology, fiw107<\/p>\n<div class=\"inner-collapsable-content-heading-wrapper\">\n<h2 class=\"wrap-elements-processed inner-collapsable-content-heading\">Abstract<\/h2>\n<\/div>\n<div class=\"inner-collapsable-content-wrapper\">\n<p id=\"p-1\" style=\"text-align: justify;\">Microorganisms can be versatile in their interactions with each other, being variously beneficial, neutral or antagonistic in their effect. Although this versatility has been observed among many microorganisms and in many environments, little is known regarding the mechanisms leading to these changes in behavior. In the present work, we analyzed the mechanism by which the soil bacterium\u00a0<em>Pseudomonas fluorescens<\/em>BBc6R8 shifts from stimulating the growth of the ectomycorrhizal fungus\u00a0<em>Laccaria bicolor<\/em>\u00a0S238N to killing the fungus. We show that, among the three secondary metabolites produced by the bacterial strain \u2013 the siderophores enantio-pyochelin and pyoverdine, and the biosurfactant viscosin -, the siderophores are mainly responsible for the antagonistic activity of the bacterium under iron-limited conditions. While the bacterial strain continues to produce beneficial factors, their effects are overridden by the action of their siderophores. This antagonistic activity of the strain\u00a0<em>P. fluorescens<\/em>\u00a0BBC6R8 in iron-depleted environments is not restricted to its influence on\u00a0<em>L. bicolor<\/em>, since it was also seen to inhibit the growth of the actinomycete\u00a0<em>Streptomyces ambofaciens<\/em>\u00a0ATCC23877. We show that the strain\u00a0<em>P. fluorescens<\/em>\u00a0BBc6R8 uses different strategies to acquire iron, depending on certain biotic and abiotic factors.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Role of secondary metabolites in the interaction between Pseudomonas fluorescens and soil microorganisms under iron limited conditions\u00a0A Deveau, H Gross, B Palin, S Mehnaz, M Schnepf, P Leblond, &#8230; FEMS Microbiology Ecology, fiw107 Abstract Microorganisms can be versatile in their &hellip; <a href=\"https:\/\/mycor.iam.inrae.fr\/IAM\/?p=6387\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-6387","post","type-post","status-publish","format-standard","hentry","category-academic-productions"],"_links":{"self":[{"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=\/wp\/v2\/posts\/6387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6387"}],"version-history":[{"count":0,"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=\/wp\/v2\/posts\/6387\/revisions"}],"wp:attachment":[{"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mycor.iam.inrae.fr\/IAM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}