{"id":634,"date":"2020-03-12T13:14:46","date_gmt":"2020-03-12T12:14:46","guid":{"rendered":"https:\/\/plant-intelligence.com\/?page_id=634"},"modified":"2020-03-12T13:14:47","modified_gmt":"2020-03-12T12:14:47","slug":"la-plante-et-lodorat","status":"publish","type":"page","link":"https:\/\/plant-intelligence.com\/index.php\/decouvertes\/la-plante-et-lodorat\/","title":{"rendered":"La plante et l&rsquo;odorat"},"content":{"rendered":"\n<p><strong>Les plantes d\u00e9gagent\n\u00e9videmment des odeurs qui leur sont tr\u00e8s utiles notamment dans leurs rapports\navec les insectes et les animaux mais elles sont sensibles aux odeurs des\nautres et s\u2019en servent&nbsp;! <\/strong><\/p>\n\n\n\n<p><em>Quelques Exp\u00e9riences sur ce sujet\u00a0: <\/em><\/p>\n\n\n\n<p><strong>Exp\u00e9rience Denny de l\u2019odeur d\u2019ethyl\u00e8ne sur les citrons<\/strong> (l\u2019\u00e9thyl\u00e8ne est pr\u00e9sent dans le k\u00e9ros\u00e8ne, dans l\u2019encens mais aussi dans les fruits m\u00fbrs). Il suffit d\u2019un taux de 1 pour 100 millions dans l\u2019air pour que le citron r\u00e9agisse et acc\u00e9l\u00e8re sa maturation. Car l\u2019\u00e9thyl\u00e8ne entraine une rapide maturation des fruits.<\/p>\n\n\n\n<p><strong>Exp\u00e9rience de la Cuscute, plante parasite de la tomate, tourn\u00e9e en vid\u00e9o par le Professeur De Moraes \u00e0 l\u2019universit\u00e9 de Pennsylvanie<\/strong>. La cuscute sent le beta-myrc\u00e8ne d\u00e9gag\u00e9 par la tomate pour s\u2019en rapprocher par circonvolution et s\u2019y attacher.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"video-container\"><iframe loading=\"lazy\" title=\"Cuscuta Utube Movie, HUJI Israel March 10 2014\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/ulFuIwqC9qo?feature=oembed&#038;wmode=opaque\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><figcaption>Comment la cuscute part \u00e0 l&rsquo;assaut de la tomate, gr\u00e2ce, on le sait maintenant, \u00e0 son odeur.<\/figcaption><\/figure>\n\n\n\n<p><strong>Exp\u00e9rience Rhoades et Orians et Baldwin et Schultz, de Dartmouth sur la chenille pr\u00e9datrice du saule pleureur.<\/strong> Lorsqu\u2019ils sont attaqu\u00e9s les saules pleureurs \u00e9mettent une odeur qui fait r\u00e9agir les saules voisins. Ces derniers mettent en place une d\u00e9fense chimique contre les chenilles. Depuis 10 ans, ces m\u00e9canismes de communication et de d\u00e9fense entre les arbres ont \u00e9t\u00e9 beaucoup mieux \u00e9tudi\u00e9 et sont venu confirmer les premi\u00e8res exp\u00e9riences.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"290\" height=\"322\" src=\"https:\/\/plant-intelligence.com\/wp-content\/uploads\/2020\/03\/Apios_americana2.jpg\" alt=\"\" class=\"wp-image-662\" srcset=\"https:\/\/plant-intelligence.com\/wp-content\/uploads\/2020\/03\/Apios_americana2.jpg 290w, https:\/\/plant-intelligence.com\/wp-content\/uploads\/2020\/03\/Apios_americana2-270x300.jpg 270w\" sizes=\"(max-width: 290px) 100vw, 290px\" \/><\/figure><\/div>\n\n\n\n<p><strong>Exp\u00e9rience Hueil \u00e0 Irapuato au Mexique sur le haricot sauvage<\/strong>, (utilisant les nouvelles techniques de la chromatographie en phase gazeuse-spectrographie de masse) montrant que ces odeurs sont bien destin\u00e9es aux autres plantes voisines car elles ne servent \u00e0 rien pour la plante attaqu\u00e9e qui r\u00e9agit m\u00eame sans les odeurs. <\/p>\n\n\n\n<p>Ces odeurs sont le jasmonate de m\u00e9thyle (<em>pour les attaques par les insectes ou par les herbivores<\/em>) et le salicylate de m\u00e9thyle (<em>pour les attaques bact\u00e9riennes, la plante transforme sa production d\u2019acide salicylique anti bact\u00e9rienne en compos\u00e9 volatil qui peut \u00eatre \u00e0 nouveau transform\u00e9 en liquide d\u2019une plante \u00e0 l\u2019autre, afin de se gu\u00e9rir<\/em>).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les plantes d\u00e9gagent \u00e9videmment des odeurs qui leur sont tr\u00e8s utiles notamment dans leurs rapports avec les insectes et les animaux mais elles sont sensibles aux odeurs des autres et s\u2019en servent&nbsp;! Quelques Exp\u00e9riences&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":64,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-634","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>La plante et l&#039;odorat - Plant Intelligence<\/title>\n<meta name=\"description\" content=\"Les plantes d\u00e9gagent \u00e9videmment des odeurs qui leur sont utiles, mais elles sont aussi sensibles aux odeurs des autres et s\u2019en servent !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/plant-intelligence.com\/index.php\/decouvertes\/la-plante-et-lodorat\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La plante et l&#039;odorat - 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