{"id":328665,"date":"2018-07-09T09:43:36","date_gmt":"2018-07-09T13:43:36","guid":{"rendered":"https:\/\/dev.totemweb.design\/macommunaute\/chroniques\/u25724-les-arbres-maitres-de-vie\/"},"modified":"2022-11-06T19:45:52","modified_gmt":"2022-11-07T00:45:52","slug":"u25724-les-arbres-maitres-de-vie","status":"publish","type":"chroniques","link":"https:\/\/dev.totemweb.design\/macommunaute\/chroniques\/u25724-les-arbres-maitres-de-vie\/","title":{"rendered":"Les arbres, ma\u00eetres de vie ?"},"content":{"rendered":"
\n

Les plantes ont \u00e9volu\u00e9 de fa\u00e7on \u00e0 synth\u00e9tiser leurs fonctions sur un seul espace. Elles n\u2019ont pas d\u2019organes de la vue comme les yeux mais sont pourvues d\u2019une multitude de photor\u00e9cepteurs hyper-sophistiqu\u00e9s qui distinguent toutes les longueurs d\u2019onde de la lumi\u00e8re. M\u00eame les racines en poss\u00e8dent et sont sensibles \u00e0 la lumi\u00e8re pour la fuir. Ainsi les plantes voient. Les plantes \u00e9mettent des messages volatils pour alerter leurs cong\u00e9n\u00e8res d\u2019un danger. Attaqu\u00e9e par un insecte herbivore, une plante exhalera aussit\u00f4t des mol\u00e9cules pour informer les plantes avoisinantes afin qu\u2019elles parent au danger. Les plantes produiront ainsi des mol\u00e9cules chimiques susceptibles de rendre leurs feuilles indigestes voire v\u00e9n\u00e9neuses pour l\u2019agresseur. C\u2019est le cas des acacias pour se prot\u00e9ger des girafes.<\/p>\n

Extrait de la revue Acropolis de Juillet 2018\u00a0<\/p>\n

Pour lire la suite ou vous abonner gratuitement, suivez ce lien:\u00a0http:\/\/www.philo-aujourdhui.ca\/revue-acropolis.htm<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Les plantes ont \u00e9volu\u00e9 de fa\u00e7on \u00e0 synth\u00e9tiser leurs fonctions sur un seul espace. Elles n\u2019ont pas d\u2019organes de la vue comme les yeux mais sont pourvues d\u2019une multitude de photor\u00e9cepteurs hyper-sophistiqu\u00e9s qui distinguent toutes les longueurs d\u2019onde de la lumi\u00e8re.<\/p>\n

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