{"id":34342,"date":"2021-09-10T11:45:26","date_gmt":"2021-09-10T09:45:26","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/comment-les-plantes-ressentent-elles-la-gravite\/"},"modified":"2021-09-10T11:45:26","modified_gmt":"2021-09-10T09:45:26","slug":"comment-les-plantes-ressentent-elles-la-gravite","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/comment-les-plantes-ressentent-elles-la-gravite\/","title":{"rendered":"Comment les plantes ressentent-elles la gravit\u00e9 ?"},"content":{"rendered":"<p>Comment les plantes ressentent-elles la gravit\u00e9 ? C\u2019est la question \u00e0 laquelle des chercheurs du CNRS, de l\u2019INRA et de l\u2019Universit\u00e9 Clermont Auvergne ont r\u00e9cemment tent\u00e9 de r\u00e9pondre.<br \/>\nLeurs recherches ont montr\u00e9 que les plantes poss\u00e8dent des cellules remplies de grains d\u2019amidon microscopiques, appel\u00e9es statolithes. Leur disposition dans les cellules indique le bas et guide la croissance de la plante dans une direction verticale. Les plantes sont par ailleurs capables de sentir des inclinaisons m\u00eames tr\u00e8s faibles. Pourtant, ce m\u00e9canisme v\u00e9g\u00e9tal, para\u00eet \u00eatre, a priori, un outil de d\u00e9tection tr\u00e8s peu pr\u00e9cis.<br \/>\nLes chercheurs ont expliqu\u00e9 ce curieux paradoxe en observant que ces grains sont agit\u00e9s en permanence dans les cellules v\u00e9g\u00e9tales, ce qui conf\u00e8re au syst\u00e8me granulaire des propri\u00e9t\u00e9s proches de celles d&rsquo;un liquide, comme dans un niveau \u00e0 bulle.<br \/>\nMathieu D. Comment les plantes ressentent-elles si pr\u00e9cis\u00e9ment la gravit\u00e9 ? Tela Botanica Actualit\u00e9s, 09\/05\/2018.<\/p>","protected":false},"excerpt":{"rendered":"<p>Comment les plantes ressentent-elles la gravit\u00e9 ? C\u2019est la question \u00e0 laquelle des chercheurs du CNRS, de l\u2019INRA et de l\u2019Universit\u00e9 Clermont Auvergne ont r\u00e9cemment tent\u00e9 de r\u00e9pondre. Leurs recherches ont montr\u00e9 que les plantes poss\u00e8dent des cellules remplies de grains d\u2019amidon microscopiques, appel\u00e9es statolithes. Leur disposition dans les cellules indique le bas et guide [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comment les plantes ressentent-elles la gravit\u00e9 ? - For\u00eat.Nature<\/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:\/\/foretnature.be\/en\/resume-foret-mail\/comment-les-plantes-ressentent-elles-la-gravite\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment les plantes ressentent-elles la gravit\u00e9 ? - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Comment les plantes ressentent-elles la gravit\u00e9 ? C\u2019est la question \u00e0 laquelle des chercheurs du CNRS, de l\u2019INRA et de l\u2019Universit\u00e9 Clermont Auvergne ont r\u00e9cemment tent\u00e9 de r\u00e9pondre. Leurs recherches ont montr\u00e9 que les plantes poss\u00e8dent des cellules remplies de grains d\u2019amidon microscopiques, appel\u00e9es statolithes. 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