microspore

Microspore mother cells meiosis was conformed to simultaneous type with mostly tetrahedral and decussate tetrad.

小孢子母细胞减数分裂属于同时型，小孢子在四分体中的排列方式多数为四面体形，少数为十字交叉形。

During the mitosis of microspore mother cells, the nucleus of tapetum divides into two. The primary sporogenous cells develop into microsporocyte by mitosis. The microsporocyte undergoes simultaneous meiotic division and produces tetrahedral tetrad.

初生造孢细胞经过有丝分裂，形成次生造孢细胞，然后次生造孢细胞发育成小孢子母细胞，小孢子母细胞经过减数分裂形成四分体，胞质分裂为同时型。

The chromatin of tapetal cell has a period of becoming condensed and then spreading accompanying the meiosis of the microspore mother cells, which will affect the entering of nutrient into the inner part of microsporangium.

绒毡层细胞的染色质伴随着小孢子母细胞减数分裂有一个浓缩和伸展的时期，这个时期影响营养物质向小孢子囊内部转运。