海南本地槟榔小孢子发生及雄配子体形成研究

摘要

The microspore meiosis and male gametophyte development of local Areca cathecu Linnaeus in Hainan were studied with conventional squash method, and the correlation between the developmental stage of microspore and the external morphological characteristics of the inflorescence was analyzed. The results showed that the cytokinesis of microspore mother cells during meiosis belonged to simultaneous type, the microspores were almost tetrahedral - type ones, and the mature pollen grains were 2 - cell type. There was a certain corresponding relationship between the external shape and internal structure of inflorescence..%采用常规压片法,对海南本地槟榔(Areca cathecu Linnaeus)小孢子减数分裂和雄配子体发育过程进行了研究,并将其不同发育阶段与花、花序的外部形态特征相联系,结果显示:海南本地槟榔小孢子母细胞减数分裂的胞质分裂属于同时型,小孢子排列呈四面体状,成熟花粉粒为2-细胞型；花序外部形态与内部结构具有一定的对应关系.