{"id":322918,"date":"2019-11-28T20:06:31","date_gmt":"2019-11-28T17:06:31","guid":{"rendered":"https:\/\/kinsta.unitedwithisrael.org\/?p=322918"},"modified":"2019-12-01T11:21:02","modified_gmt":"2019-12-01T08:21:02","slug":"israel-invente-une-bacterie-qui-lutte-contre-le-rechauffement-climatique","status":"publish","type":"post","link":"https:\/\/kinsta.unitedwithisrael.org\/fr\/israel-invente-une-bacterie-qui-lutte-contre-le-rechauffement-climatique\/","title":{"rendered":"Isra\u00ebl invente une bact\u00e9rie qui lutte contre le r\u00e9chauffement climatique!"},"content":{"rendered":"

Les bact\u00e9ries ont \u00e9t\u00e9 form\u00e9es \u00e0 n’absorber que du dioxyde de carbone \u00e0 la place du sucre.<\/strong><\/em><\/p>\n

Par l’\u00e9quipe d’Unis avec Isra\u00ebl<\/em><\/p>\n

Des chercheurs isra\u00e9liens de l’Institut scientifique Weizmann ont annonc\u00e9 mercredi le d\u00e9veloppement de bact\u00e9ries qui se nourrissent de dioxyde de carbone et non de sucre. Cette avanc\u00e9e pourrait avoir des cons\u00e9quences sur la lutte contre le r\u00e9chauffement climatique et le d\u00e9veloppement de carburants neutres en carbone.<\/p>\n

L’\u00e9tude a \u00e9t\u00e9 publi\u00e9e dans la revue Cell.<\/p>\n

La recherche a \u00e9t\u00e9 effectu\u00e9e dans le laboratoire du professeur Ron Milo, avec Roee Ben-Nissan, Yinon Bar-On et d\u2019autres membres de l\u2019\u00e9quipe de Milo au sein du d\u00e9partement des sciences des plantes et de l\u2019environnement de l\u2019Institut. Selon Weizmann Wonder Wander (WWW), cela a n\u00e9cessit\u00e9 \u00ab\u00a0une conception rationnelle, un g\u00e9nie g\u00e9n\u00e9tique et une version acc\u00e9l\u00e9r\u00e9e de l’\u00e9volution\u00a0\u00bb.<\/em><\/p>\n

\u00abNotre laboratoire a \u00e9t\u00e9 le premier \u00e0 poursuivre l\u2019id\u00e9e de modifier le r\u00e9gime alimentaire d\u2019un h\u00e9t\u00e9rotrophe normal (un aliment qui consomme des substances organiques) pour le convertir en autotrophisme (\u00ab vivre dans l\u2019air \u00bb)<\/em>\u00bb, a d\u00e9clar\u00e9 Milo, selon WWW. \u00abCela paraissait impossible au d\u00e9but, mais cela nous a appris de nombreuses le\u00e7ons et nous avons finalement montr\u00e9 que cela pouvait \u00eatre fait. Nos r\u00e9sultats constituent une \u00e9tape importante dans notre objectif d’applications scientifiques efficaces et \u00e9cologiques.<\/em> \u00bb<\/p>\n

Les scientifiques ont travaill\u00e9 pendant pr\u00e8s de dix ans pour sevrer les bact\u00e9ries du sucre lentement et \u00e9viter la famine. Au lieu de cela, les bact\u00e9ries ont construit la biomasse \u00e0 partir de dioxyde de carbone (CO2) dans l’air. En outre, ils \u00ab\u00a0ont ins\u00e9r\u00e9 un g\u00e8ne permettant \u00e0 la bact\u00e9rie de tirer de l’\u00e9nergie d’une substance facilement disponible appel\u00e9e formiate, qui peut \u00eatre produite directement \u00e0 partir d’\u00e9lectricit\u00e9 et d’air et qui est\u00a0\u00bb susceptible d’abandonner \u00ab\u00a0des \u00e9lectrons \u00e0 la bact\u00e9rie<\/em>\u00ab\u00a0, selon le rapport. .<\/p>\n

Afin de faire en sorte que les bact\u00e9ries changent de \u00ab\u00a0r\u00e9gime<\/em>\u00ab\u00a0, les scientifiques ont continuellement r\u00e9duit la quantit\u00e9 de sucre, g\u00e9n\u00e9ralement du sirop de ma\u00efs, dont se nourrissaient les bact\u00e9ries, tout en lui donnant du dioxyde de carbone et du formiate.<\/p>\n

La prog\u00e9niture de la bact\u00e9rie a pu \u00eatre progressivement sevr\u00e9e de la d\u00e9pendance au sucre. Apr\u00e8s six mois d’adaptation au nouveau r\u00e9gime, certains ont effectu\u00e9 un renouvellement nutritionnel complet.<\/p>\n

\u00ab\u00a0Les chercheurs pensent que le nouveau\u00a0\u00bb coup de fouet pour la sant\u00e9 \u00ab\u00a0de la bact\u00e9rie pourrait finalement \u00eatre sain pour la plan\u00e8te<\/em>\u00ab\u00a0, a not\u00e9 WWW.<\/p>\n

Les scientifiques esp\u00e8rent que ces recherches contribueront \u00e0 r\u00e9duire l’accumulation de gaz \u00e0 effet de serre dans l’atmosph\u00e8re et \u00e0 lutter contre le r\u00e9chauffement de la plan\u00e8te en faisant en sorte que les bact\u00e9ries mangent du CO2 atmosph\u00e9rique. En outre, ils esp\u00e8rent que les bact\u00e9ries pourraient mieux s\u2019adapter \u00e0 la vie gr\u00e2ce aux \u00e9lectrons des capteurs solaires et stocker l\u2019\u00e9nergie pour une utilisation ult\u00e9rieure en tant que combustible. Ce carburant serait neutre en carbone, ce qui signifie qu’il n’aurait aucune empreinte carbone sur l’environnement.<\/p>\n

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Les bact\u00e9ries ont \u00e9t\u00e9 form\u00e9es \u00e0 n’absorber que du dioxyde de carbone \u00e0 la place du sucre. Par l’\u00e9quipe d’Unis avec Isra\u00ebl Des chercheurs isra\u00e9liens de l’Institut scientifique Weizmann ont annonc\u00e9 mercredi le d\u00e9veloppement de bact\u00e9ries qui se nourrissent de dioxyde de carbone et non de sucre. Cette avanc\u00e9e pourrait avoir des cons\u00e9quences sur la… Read more »<\/a><\/p>\n","protected":false},"author":4242,"featured_media":254120,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[28414],"tags":[36669,30152,29804,34248,30225,36670,29313],"class_list":["post-322918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-influence-israelienne","tag-bacterie","tag-chercheurs","tag-ecologie","tag-innovation-fr","tag-planete","tag-rechauffement-climatique","tag-recherche"],"better_featured_image":{"id":254120,"alt_text":"","caption":"Bacteria. 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