{"id":8489,"date":"2024-08-01T16:27:20","date_gmt":"2024-08-01T14:27:20","guid":{"rendered":"https:\/\/www.mio.osupytheas.fr\/?page_id=8489"},"modified":"2024-09-20T09:26:21","modified_gmt":"2024-09-20T07:26:21","slug":"microorganismes-marins-a-lere-de-lanthropocene","status":"publish","type":"page","link":"https:\/\/www.mio.osupytheas.fr\/fr\/recherche\/les-equipes-de-recherche\/microbiologie-environnementale-bioprocedes-meb\/microorganismes-marins-a-lere-de-lanthropocene\/","title":{"rendered":"Microorganismes marins \u00e0 l\u2019\u00e8re de l\u2019anthropoc\u00e8ne"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"8489\" class=\"elementor elementor-8489\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-680c00bc e-flex e-con-boxed e-con e-parent\" data-id=\"680c00bc\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6d2b89c1 e-flex e-con-boxed e-con e-child\" data-id=\"6d2b89c1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f879b29 elementor-widget__width-initial elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"3f879b29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Microorganismes marins \u00e0 l\u2019\u00e8re de l\u2019anthropoc\u00e8ne<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-236871db elementor-widget__width-initial breadcrumb elementor-widget elementor-widget-shortcode\" data-id=\"236871db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                            ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23f3ea07 e-con-full e-flex e-con e-parent\" data-id=\"23f3ea07\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-48c82ee8 e-flex e-con-boxed e-con e-child\" data-id=\"48c82ee8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-29a7fc2b e-con-full e-flex e-con e-child\" data-id=\"29a7fc2b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7aa7d82c elementor-widget-mobile__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"7aa7d82c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"rtejustify\">La diversit\u00e9 et les fonctions microbiennes marines pr\u00e9sentent des variations spatio-temporelles li\u00e9es \u00e0 leurs environnements biotiques et abiotiques. Partie int\u00e9grante de cet environnement, l\u2019esp\u00e8ce humaine exerce un ensemble de pressions et perturbations sur le milieu marin, \u00e0 l\u2019\u00e9chelle globale (changements climatiques) comme \u00e0 l\u2019\u00e9chelle locale (pollutions chimiques). Son d\u00e9veloppement continu dans la zone littorale g\u00e9n\u00e8re de nombreuses pollutions, auxquelles les microorganismes marins et les communaut\u00e9s qu\u2019ils constituent doivent s\u2018adapter. Devant la multiplicit\u00e9 des pressions anthropiques exerc\u00e9es simultan\u00e9ment, \u00e9tablir la hi\u00e9rarchie des contraintes naturelles et anthropiques sur les communaut\u00e9s microbiennes et leurs fonctions est un enjeux majeur de l\u2019anthropoc\u00e8ne, qui vient s\u2019ajouter \u00e0 l\u2019\u00e9lucidation des interactions entre esp\u00e8ces microbiennes et contaminants chimiques sp\u00e9cifiques.<\/p><p class=\"rtejustify\">Sur la base des descriptions taxonomiques, fonctionnelles et \u00e9cologiques qui font l\u2019objet des deux th\u00e8mes de recherche pr\u00e9c\u00e9dents, l\u2019\u00e9quipe MEB apportera des \u00e9l\u00e9ments de compr\u00e9hension relatifs \u00e0 ces impacts anthropiques en recherchant des marqueurs de sensibilit\u00e9 au sein des communaut\u00e9s microbiennes p\u00e9lagiques, benthiques ou associ\u00e9es \u00e0 d\u2019autres organismes. Devant la multiplicit\u00e9 des pressions anthropiques pouvant s\u2019exercer simultan\u00e9ment, par exemple en zone portuaire, l\u2019\u00e9quipe d\u00e9veloppera des approches multi-OMICS pour \u00e9tablir une hi\u00e9rarchie des pressions naturelles et anthropiques s\u2019exer\u00e7ant sur un \u00e9cosyst\u00e8me donn\u00e9 \u00e0 partir du potentiel g\u00e9n\u00e9tique, de la dynamique et du fonctionnement de la communaut\u00e9 microbienne qu\u2019il abrite. Une attention particuli\u00e8re sera port\u00e9e \u00e0 l\u2019impact d\u2019activit\u00e9s humaines sp\u00e9cifiques sur les communaut\u00e9s microbiennes, comme le dragage des s\u00e9diments portuaires, les rejets d\u2019activit\u00e9 mini\u00e8re ou l\u2019aquaculture. Les m\u00e9canismes d\u2019adaptation et de diss\u00e9mination de la r\u00e9sistance \u00e0 certains contaminants chimiques sp\u00e9cifiques (e.g. m\u00e9taux, m\u00e9tallo\u00efdes, hydrocarbures, phytosanitaires et antibiotiques) seront \u00e9tudi\u00e9s via un couplage d\u2019\u00e9tudes \u00e0 l\u2019\u00e9chelle des communaut\u00e9s et sur mod\u00e8les cultiv\u00e9s. Une approche sur mod\u00e8le sera \u00e9galement privil\u00e9gi\u00e9e pour mettre en \u00e9vidence les r\u00e9ponses sp\u00e9cifiques d\u2019esp\u00e8ces \u00e0 des combinaisons de changements globaux (r\u00e9chauffement, notamment dans les zones sentinelles des hautes latitudes) et locaux (contaminations m\u00e9talliques). Les connaissances acquises sur les m\u00e9canismes et d\u00e9terminants de r\u00e9sistance seront utilis\u00e9es pour \u00e9valuer le potentiel des interactions biotiques dans la protection du phytoplancton en pr\u00e9sence de bact\u00e9ries adapt\u00e9es \u00e0 divers contaminants chimiques toxiques et \u00e9galement mises \u00e0 profit pour comprendre et anticiper les changements des \u00e9cosyst\u00e8mes naturels anthropis\u00e9s.<\/p><p class=\"rtejustify\">Ces recherches feront appel aux comp\u00e9tences des plateformes <a href=\"https:\/\/www.mio.osupytheas.fr\/recherche\/structures-techniques\/plateforme-omics\/\" target=\"_blank\" rel=\"noopener\">OMICS<\/a>,\u00a0 El\u00e9ments biog\u00e8nes en oc\u00e9anographie et <a href=\"\/fr\/plateformes-de-recherche\/ptf-regionale-de-cytometrie-pour-la-microbiologie-precym\" target=\"_blank\" rel=\"noopener\">PRECYM<\/a> ainsi qu\u2019au service commun <a href=\"\/fr\/structures-techniques\/radioactivite\" target=\"_blank\" rel=\"noopener\">Radioactivit\u00e9<\/a>. L\u2019expertise de l\u2019\u00e9quipe dans la description de la diversit\u00e9 et des dynamiques microbiennes servira de base des collaborations avec l\u2019\u00e9quipe <a href=\"\/fr\/equipes-de-recherche\/chimie-des-environnements-marins-cem\" target=\"_blank\" rel=\"noopener\">CEM<\/a> et <a href=\"\/fr\/equipes-de-recherche\/ecologie-marine-et-biodiversite-embio\" target=\"_blank\" rel=\"noopener\">EMBIO<\/a> pour \u00e9valuer la contribution microbienne aux transferts de contaminants entre compartiments marins (s\u00e9diment, eau, biota).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-34081859 e-flex e-con-boxed e-con e-parent\" data-id=\"34081859\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ef761fa elementor-widget elementor-widget-heading\" data-id=\"5ef761fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">Partager sur :<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4440f005 elementor-share-buttons--view-icon elementor-share-buttons--shape-circle elementor-widget__width-auto elementor-share-buttons--skin-gradient elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"4440f005\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;share_url&quot;:{&quot;url&quot;:&quot;&quot;,&quot;is_external&quot;:&quot;&quot;,&quot;nofollow&quot;:&quot;&quot;,&quot;custom_attributes&quot;:&quot;&quot;}}\" data-widget_type=\"share-buttons.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div 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spatio-temporelles li\u00e9es \u00e0 leurs environnements biotiques et abiotiques. Partie int\u00e9grante de cet environnement, l\u2019esp\u00e8ce humaine exerce un ensemble de pressions [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4489,"parent":8456,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-8489","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/pages\/8489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/comments?post=8489"}],"version-history":[{"count":7,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/pages\/8489\/revisions"}],"predecessor-version":[{"id":13758,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/pages\/8489\/revisions\/13758"}],"up":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/pages\/8456"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media\/4489"}],"wp:attachment":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media?parent=8489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}