被子植物受精机制的研究进展

被引:6
作者
葛丽丽
田惠桥
机构
[1] 厦门大学生命科学学院
关键词
被子植物; 受精机理; 精细胞; 卵细胞; 合子;
D O I
暂无
中图分类号
Q944.44 [植物受精作用];
学科分类号
090102 ;
摘要
被子植物的受精是一个复杂而精巧的过程。花粉管到达子房,通过退化助细胞进入胚囊,释放出两个精细胞。原来在花粉管中相互联结的两个精细胞在退化助细胞中分开,一个与卵细胞融合,另一个与中央细胞融合,完成双受精。目前对双受精过程中有关雌、雄配子识别的机制还知之甚少。本文介绍了目前被子植物精、卵细胞融合前后的细胞周期变化、退化助细胞的功能、精细胞在退化助细胞中迁移的研究动态、精细胞的倾向受精和卵细胞的激活等被子植物受精生物学领域中的一些新的研究成果和发展趋势。
引用
收藏
页码:271 / 279
页数:9
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