sterile cell

The thermo sensitive phase fertility alteration in Pingxiang Dominant Genic Male Sterile Rice occurred from pollen mother cell formation to meiotic phase, i.e. 18-12 days before heading.

萍乡显性核不育水稻育性转换温度敏感期在花粉母细胞形成期至减数分裂期，即抽穗前18～12d；

The male-sterile line cell nucleus has the Kafir nuclear system, the kaoliang nuclear system, trend Kafir nuclear system and the Shallu nuclear system.

不育系的细胞核有南非高粱核体系、中国高粱核体系、倾向南非高粱核体系和印度高粱核体系。

METHODS The experiment had been completed in the Biochemistry Department of Sailing Medical Science Institute of Nantong University from May to November 2000. The cerebral cortex from 15-17 days old foetus mice which were selected and dissociated under sterile condition was used to primary cell culture.

方法：实验于2000-05/11在南通大学航海医学研究所生化教研室完成。选择孕15～17d的小鼠胎鼠，在无菌条件下，分离大脑皮质，进行原代细胞培养。

In sterile anthers, abnormal distribution of calcium gran-ules first appeared in callus wall of microspore mother cell ( Plate IV-1).

在不育花药中，最早出现的钙颗粒异常分布是在小孢子母细胞的胼胝质壁中积累了较多的钙颗粒。