…Originally a term proposed by WO Focke in 1881, it referred to the phenomenon in which the influence of pollen (male parent) causes changes in the characteristics of parts of the plant body, such as seeds and fruits, but now it refers only to cases in which the endosperm is affected. Angiosperms undergo double fertilization, and of the two male nuclei that come from the pollen, one fertilizes the egg nucleus to form an embryo, and the other fertilizes the two polar nuclei to form the endosperm. … *Some of the terminology that mentions "Focke, WO" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…もともとは1881年フォックW.O.Fockeが提唱した言葉で,花粉(雄親)の影響で種子や果実など植物体の一部の形質に変化が現れる現象をいったが,現在ではこのうち内胚乳に影響が現れる場合のみをいう。被子植物は重複受精をおこない,花粉からきた2個の雄核のうち,1個は卵核と受精して胚を形成し,他の1個は二つの極核と受精して内胚乳を形成する。… ※「Focke,W.O.」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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