{"id":217,"date":"2026-08-25T12:00:18","date_gmt":"2026-08-25T10:00:18","guid":{"rendered":"https:\/\/phs55.lautre.net\/bota\/?p=217"},"modified":"2026-08-27T09:11:57","modified_gmt":"2026-08-27T07:11:57","slug":"cycle-des-vegetaux","status":"publish","type":"post","link":"https:\/\/phs55.lautre.net\/bota\/cycle-des-vegetaux\/","title":{"rendered":"Cycle des v\u00e9g\u00e9taux"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Le cycle des v\u00e9g\u00e9taux est caract\u00e9ris\u00e9 par l&rsquo;alternance de deux g\u00e9n\u00e9rations :<br>&#8211;  une g\u00e9n\u00e9ration diplo\u00efde nomm\u00e9e SPOROPHYTE de \u00ab\u00a0spore\u00a0\u00bb et \u00ab\u00a0phyton\u00a0\u00bb(plante), qui forme les spores apr\u00e8s une m\u00e9iose <br>&#8211;  une g\u00e9n\u00e9ration haplo\u00efde nomm\u00e9e GAMETOPHYTE de \u00ab\u00a0gam\u00e8te\u00a0\u00bb et \u00ab\u00a0phyton\u00a0\u00bb, qui forme les gam\u00e8tes suivi par une f\u00e9condation donnant un zygote (ou \u0153uf) <br>Les croissantes v\u00e9g\u00e9tatives des individus haplo\u00efdes et diplo\u00efdes peuvent \u00eatre variables, importantes ou presque inexistantes. Les mousses des bois sont des individus haplo\u00efdes, alors que les frondes des foug\u00e8res sont diplo\u00efdes.<br><br>Les animaux ne pr\u00e9sentent pas de g\u00e9n\u00e9ration haplo\u00efde, les individus g\u00e9n\u00e8rent directement des gam\u00e8tes, suivi d&rsquo;une f\u00e9condation.  <\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"574\" height=\"480\" src=\"https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/08\/CycleVegetaux.jpg\" alt=\"\" class=\"wp-image-216\" style=\"aspect-ratio:1.1958380646687647;width:325px;height:auto\" srcset=\"https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/08\/CycleVegetaux.jpg 574w, https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/08\/CycleVegetaux-300x251.jpg 300w\" sizes=\"auto, (max-width: 574px) 100vw, 574px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile is-vertically-aligned-top\" style=\"grid-template-columns:15% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"333\" height=\"500\" src=\"https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/07\/image-3.png\" alt=\"\" class=\"wp-image-179 size-full\" srcset=\"https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/07\/image-3.png 333w, https:\/\/phs55.lautre.net\/bota\/wp-content\/uploads\/2026\/07\/image-3-200x300.png 200w\" sizes=\"auto, (max-width: 333px) 100vw, 333px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">Source :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un excellent livre !<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00ab La botanique red\u00e9couverte \u00bb de Aline Raynal-Roques chez Belin<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le cycle des v\u00e9g\u00e9taux est caract\u00e9ris\u00e9 par l&rsquo;alternance de deux g\u00e9n\u00e9rations :&#8211; une g\u00e9n\u00e9ration diplo\u00efde nomm\u00e9e SPOROPHYTE de \u00ab\u00a0spore\u00a0\u00bb et \u00ab\u00a0phyton\u00a0\u00bb(plante), qui forme les spores apr\u00e8s une m\u00e9iose &#8211; une&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-217","post","type-post","status-publish","format-standard","hentry","category-reproduction"],"_links":{"self":[{"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/posts\/217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/comments?post=217"}],"version-history":[{"count":7,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/posts\/217\/revisions"}],"predecessor-version":[{"id":226,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/posts\/217\/revisions\/226"}],"wp:attachment":[{"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/media?parent=217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/categories?post=217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phs55.lautre.net\/bota\/wp-json\/wp\/v2\/tags?post=217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}