摘要
菠萝（Ａｎａｎａｓｃｏｍｏｓｕｓ（Ｌｉｎｎ．）Ｍｅｒｒ．）花粉母细胞减数分裂时的胞质分裂为连续型，四分孢子主要呈左右对称型或交叉型。倒生胚珠、双珠被、厚珠心。胚囊母细胞产生线状四分体。合点端一个大孢子发育，为功能大孢子。胚囊发育属蓼型。
This paper reports studies on the microsporogenesis,megasporogenesis and em-bryo sac development of Ananas comosus(L.)Merr.The cytokinesis of the microspore mothercell in meiosis was of the successive type.The arrangement of microspores in the tetrads waszygomorphic or decuassate.The anatropous ovule was bitegminous and crassinucellate.Themegaspore mother cell gave rise to a linear tetra.The chalazal megaspore became a func-tional megaspore.The development of the embryo sac conformed the Polygonum type.
出处
《华南农业大学学报》
CAS
CSCD
1994年第1期104-108,共5页
Journal of South China Agricultural University
关键词
大孢子
小孢子
胚囊
菠萝
Megaspore
Microspore
Embryo sac
Pineapple
