翻訳と辞書 Words near each other ・ Cleisthenes (son of Sibyrtius) ・ Cleisthenes herzensteini ・ Cleisthenes of Sicyon ・ Cleisthenes pinetorum ・ Cleistocactus ・ Cleistocactus hyalacanthus ・ Cleistocactus morawetzianus ・ Cleistocactus samaipatanus ・ Cleistocactus strausii ・ Cleistocactus tominensis ・ Cleistocactus winteri ・ Cleistocalyx operculatus ・ Cleistocarpida ・ Cleistochloa ・ Cleistocybe ・ Cleistogamy ・ Cleistogenes ・ Cleistoiodophanus ・ Cleistosphinctes ・ Cleistothelebolus ・ Cleit ・ Cleitagora ・ Cleitamiphanes ・ Cleitarchus ・ Cleitarchus of Eretria ・ Cleite ・ Cleithrolepis ・ Cleithrophobia ・ Cleithrum ・ Cleiton Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cleistogamy ： ウィキペディア英語版 Cleistogamy Cleistogamy or automatic self-pollination describes the trait of certain plants to propagate by using non-opening, self-pollinating flowers. Especially well known in peanuts, peas, and beans, this behavior is most widespread in the grass family. However, the largest genus of cleistogamous plants is actually ''Viola''. The more common opposite of cleistogamy, or "closed marriage," is called chasmogamy, or "open marriage." Virtually all plants that produce cleistogamous flowers also produce chasmogamous ones. 〔Meeuse, Bastiaan and Sean Morris. 1984. The sex life of flowers. New York, NY: Facts on File Publishers. pp 110-111.〕 The principal advantage of cleistogamy is that it requires less plant resources to produce seeds than does chasmogamy because development of petals, nectar and large amounts of pollen are not required. This efficiency makes cleistogamy particularly useful for seed production on unfavorable sites or adverse conditions. ''Impatiens capensis,'' for example, has been observed to produce only cleistogamous flowers after being severely damaged by grazing and to maintain populations on unfavorable sites with only cleistogamous flowers. The obvious disadvantage of cleistogamy is that self-fertilization occurs, which may suppress the creation of genetically superior plants.〔 For genetically modified (GM) rapeseed, researchers hoping to minimise the admixture of GM and non-GM crops are attempting to use cleistogamy to prevent gene flow. However, preliminary results from Co-Extra, a current project within the EU research program, show that although cleistogamy reduces gene flow, it is not at the moment a consistently reliable tool for biocontainment; due to a certain instability of the cleistogamous trait, some flowers may open and release genetically modified pollen. ==See also== * Co-existence of genetically modified, conventional, and organic crops 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cleistogamy」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.