摘要： 为了揭示洋葱雄性不育小孢子败育的时期和方式,试验利用石蜡切片技术,在光学显微镜下观察了洋葱雄性不育材料0127A 及可育材料0127B 的小孢子发育过程和各时期的形态特征。结果发现,雄性不育材料0127A 的小孢子败育发生在单胞花粉粒时期,小孢子的细胞质被降解成空壳,染色浅,缺乏营养物质而败育。

关键词: 洋葱, 雄性不育, 小孢子发生, 细胞学

Abstract: Paraffin wax section was employed to observe the microsporogenesis of male sterility of onion line 0127A and its maintainer 0127B and their morphological features at different microsporogenesis stages with light microscope. It was shown that male sterility line 0127A microspore abortion occurred in the uninucleate pollen grain stage and during this period cytoplasm of monocytic microspore were decompounded so that the microspore aborted because of lacking nutrition.

Key words: Dnion, Malesterility, Microsporogenesis, Cytomorpholoy

中图分类号: 

• S633.1