{"id":23935,"date":"2025-11-25T15:30:49","date_gmt":"2025-11-25T14:30:49","guid":{"rendered":"https:\/\/www.mio.osupytheas.fr\/?p=23935"},"modified":"2025-12-11T15:27:02","modified_gmt":"2025-12-11T14:27:02","slug":"seminaire-mio-benoit-de-pins-mercredi-10-decembre-2025-a-1300-amphitheatre-oceanomed","status":"publish","type":"post","link":"https:\/\/www.mio.osupytheas.fr\/fr\/seminaire-mio-benoit-de-pins-mercredi-10-decembre-2025-a-1300-amphitheatre-oceanomed\/","title":{"rendered":"S\u00e9minaire MIO \u2013 Benoit de Pins \u2013 Mercredi 10 d\u00e9cembre 2025 \u00e0 13:00 \u2013 Amphith\u00e9\u00e2tre OCEANOMED"},"content":{"rendered":"\t\t
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Le Dr. Benoit De Pins<\/strong>, Chercheur postdoctoral MSCA, Universit\u00e9 de Naples Federico II, Invit\u00e9 par James Bradley<\/strong>, donnera un s\u00e9minaire sur le th\u00e8me : Mapping biological carbon fixation across the Earth, <\/em>le mercredi 10 d\u00e9cembre 2025<\/strong> \u00e0 13:00 \u00e0 l\u2019Amphith\u00e9\u00e2tre OCEANOMED.<\/p>

R\u00e9sum\u00e9<\/strong> : Carbon fixation is fundamental to life on Earth and predominantly occurs through the canonical Calvin cycle. However, microbial life has also evolved five alternative pathways for carbon fixation. While the Calvin cycle has been drawing significant attention for decades, carbon fixation involving these non-canonical pathways remains poorly understood. HDe la mer M\u00e9diterran\u00e9e \u00e0 l\u2019oc\u00e9an Atlantique : croiser les approches pour d\u00e9voiler le cycle du owever, they are ecologically essential in diverse environments, such as anoxic habitats within Earth\u2019s subsurface. Their contribution to the global carbon cycle, though long overlooked, is now garnering increased attention. The recent surge in metagenomic data from diverse environments now offers an unprecedented opportunity to explore carbon fixation strategies in greater detail. Accordingly, several studies aiming to better characterize this metabolic diversity across various environments have emerged in recent years. Yet, they often remain isolated and do not accurately describe the dependence of these metabolisms on the geoenvironmental context. Our work aims to present a blueprint of carbon fixation on Earth. Using in-house and publicly available metagenomes from a wide range of environments, we systematically analyzed carbon fixation strategies across the Earth, in search of the main environmental factors determining the carbon fixation pathway used. Our systematic approach not only increases our understanding of the role of microbial metabolisms in global carbon cycling but may also open perspectives on life\u2019s adaptability on Earth and beyond.<\/p>\t\t\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

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Cr\u00e9dit photo : Fondation Bettencourt Schueller<\/p>\t\t\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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Le Dr. Benoit De Pins, Chercheur postdoctoral MSCA, Universit\u00e9 de Naples Federico II, Invit\u00e9 par James Bradley, donnera un s\u00e9minaire sur le th\u00e8me : Mapping biological carbon fixation across the […]<\/p>\n","protected":false},"author":319,"featured_media":23945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17,1,39],"tags":[],"class_list":["post-23935","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-la-une","category-actualites","category-seminaire-mio"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts\/23935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/users\/319"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/comments?post=23935"}],"version-history":[{"count":16,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts\/23935\/revisions"}],"predecessor-version":[{"id":24030,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/posts\/23935\/revisions\/24030"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media\/23945"}],"wp:attachment":[{"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/media?parent=23935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/categories?post=23935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mio.osupytheas.fr\/fr\/wp-json\/wp\/v2\/tags?post=23935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}