本工作以保持系长白六号为对照,分析比较了以长白六号为细胞核的“野败”、“岗”、“滇”、“红莲”、“BT”五种同核异质水稻雄性不育系花粉发生过程中线粒体超微结构变化。五种不育系在花粉发生过程中均出现线粒体结构异常现象说明,水稻细胞质雄性不育性的产生也可能与线粒体有关。观察还发现,五种同为长白六号细胞核的雄性不育系,在线粒体结构呈现异常变化的时期各不相同,这在一定程度上反映了五种不育系细胞质遗传基础的差异性。 In this work, we compared and maintained the Changbai Bai-6 as a control, and compared and analyzed five male isoforms of “Heteroses”, “Kong”, “Dian”, “Hong Lian” and “BT” Ultrastructural changes of mitochondria during pollen formation in male sterile lines. Mitochondrial structural abnormalities occurred in all five CMS lines during the pollen development. This indicated that the generation of cytoplasmic male sterility may also be related to mitochondria. The observation also found that the five male sterile lines with the same nucleus of Changbai VI showed different periods of abnormal changes in mitochondrial structure, which partly reflected the genetic basis differences of the five cytoplasmic male sterile lines.