2024年3月29日 星期五
鹅掌楸雌配子体败育对生殖的影响
Eff ects of f emale gametophyte abortion on the reproduction of Liriodendron chinense populations
1996年 第5卷 第3期 页码[1-5]    下载全文[0.7MB]  
摘要

胚珠和雌配子体败育是限制鹅掌楸生殖成功的一个重要因素。中国东部和西部鹅掌楸种群在雌配子体发育的各阶段上的败育程度有差异,以西部种群的发育较好。西部分布区较合适的生境促进了胚囊的发育,一定温度和湿度的环境可以活化珠心细胞输送营养物质供给雌配子体发育,提高受精和结籽的能力

Abstract

The abortion of ovule and female gam etophyte is one of the impor tant factors to restrict reproduction success of Liriodendron chinense ( Hemsl. ) Sarg. The abortive situation of embryo sac in eastern populations is different from that in western populations. It is considered that suitable habitat including temperature and humidity may promote the development of nuclei of embryo sac and activate the nucellus cells to transport nutritional materials to female gametophyte, which results in increased fertilization and seeding capacity.
 

关键词生殖; 败育; 雌配子体; 鹅掌楸
Key wordsreproduction; abor tion; fem ale gametophyte; Liriodendron chinense ( Hem sl. )Sarg
作者秦慧贞,李碧媛
所在单位江苏省中国科学院植物研究所,南京 210014
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下载次数699
基金项目国家自然科学基金;