摘要
为给红小豆栽培、育种提供理论依据 ,系统研究了红小豆大孢子发生 ,雌配子体发育过程 .结果表明 ,孢原细胞起源于紧接珠心表皮之下的珠心细胞 ,几个孢原细胞平周分裂向内形成造孢细胞 ,其中只有一个发育成大孢子母细胞 .厚珠心 .线型四分体 ,近合端一个形成单核胚囊 .胚囊发育为蓼型 .开花前两极核融合成次生核 。
This experiment aims at providing a theoretic basis for the culture and breeding of Vigna angularis .The results obtained showed that:A multicellular archesporium is common. The archesporial cells cut off primary parietal cells and sporogenous cells,of which only one cell is functional. The chalazal megaspore in linear tetrad is functional. The development of embryo nary sac is of the polygonum type. Two pollar nuclei fuse into the secondary nucleus before fertilization.Three antipodal cells are ephemeral.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
2000年第3期178-181,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家科技部资助项目
