{"id":72831,"date":"2011-08-25T17:11:16","date_gmt":"2011-08-25T15:11:16","guid":{"rendered":"http:\/\/b.bati-journal.com\/et-si-le-potentiel-destructeur-de-la-merule-pouvait-etre-utile\/72831"},"modified":"2019-07-15T10:54:59","modified_gmt":"2019-07-15T08:54:59","slug":"et-si-le-potentiel-destructeur-de-la-merule-pouvait-etre-utile","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/et-si-le-potentiel-destructeur-de-la-merule-pouvait-etre-utile\/72831\/","title":{"rendered":"Et si le potentiel destructeur de la m\u00e9rule pouvait \u00eatre utile ?"},"content":{"rendered":"<p>La m\u00e9rule est un cauchemar pour le bois dans l\u2019habitat. Quand ce champignon forestier atterrit dans les maisons et y trouve un milieu propice \u00e0 son d\u00e9veloppement, il cause des d\u00e9g\u00e2ts souvent irr\u00e9versibles. Son d\u00e9veloppement se fait dans des conditions d&rsquo;obscurit\u00e9 et de faible ventilation. Il touche pr\u00e9f\u00e9rentiellement les charpentes, les escaliers et le bois d&rsquo;\u0153uvre de mani\u00e8re g\u00e9n\u00e9rale. Lorsque qu\u2019il devient visible, il est trop tard. Pour mieux comprendre les capacit\u00e9s lignivores de Serpula lacrymans &#8211; nom scientifique de la m\u00e9rule &#8211; des chercheurs du CNRS, de l\u2019Inra et de deux universit\u00e9s \u00e9trang\u00e8res, ont \u00e9pluch\u00e9 le g\u00e9nome de ce champignon et de 50 autres esp\u00e8ces foresti\u00e8res. En comparant les g\u00e8nes de plusieurs champignons d\u00e9gradant le bois, les scientifiques ont pu caract\u00e9riser le m\u00e9canisme de d\u00e9polym\u00e9risation de la lignine chez la m\u00e9rule. Les pourritures brunes, dont elle fait partie, produisent dans les premi\u00e8res \u00e9tapes de la destruction du bois de grandes quantit\u00e9s de radicaux libres hydroxyles. Ces derniers provoquent une r\u00e9action tr\u00e8s puissante qui permet de casser la couche de lignine et d&rsquo;atteindre la cellulose, dont se nourrit le champignon. La connaissance de ce m\u00e9canisme va favoriser la mise au point de moyens de lutte contre ce champignon et int\u00e9resser le secteur des bio\u00e9nergies car la d\u00e9gradation du bois est un processus important dans la fabrication de biocarburant.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La m\u00e9rule est un cauchemar pour le bois dans l\u2019habitat. Quand ce champignon forestier atterrit dans les maisons et y trouve un milieu propice \u00e0 son d\u00e9veloppement, il cause des d\u00e9g\u00e2ts souvent irr\u00e9versibles. Son d\u00e9veloppement se fait dans des conditions d&rsquo;obscurit\u00e9 et de faible ventilation. Il touche pr\u00e9f\u00e9rentiellement les charpentes, les escaliers et le bois [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[6345],"tags":[],"class_list":["post-72831","post","type-post","status-publish","format-standard","hentry","category-economie-marches"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Et si le potentiel destructeur de la m\u00e9rule pouvait \u00eatre utile ?<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/batijournal.com\/index.php\/et-si-le-potentiel-destructeur-de-la-merule-pouvait-etre-utile\/72831\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Et si le potentiel destructeur de la m\u00e9rule pouvait \u00eatre utile ?\" \/>\n<meta property=\"og:description\" content=\"La m\u00e9rule est un cauchemar pour le bois dans l\u2019habitat. 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