【摘要】 本文是分析比较同核异质的水稻雄性不育系“红莲—华矮15”和“野败—华矮15”的花粉和花药发育过程中的细胞形态学表现。实验结果表明:同为水稻华矮15的细胞核,经过核代换而转育到不同类型的细胞质中,虽经过多代的回交和培育,但二者在花粉和花药发育过程中,细胞形态学上的表现是存在差异的。更多还原

【Abstract】 Cytological abnormalities were found in the microsporogensis of twomale-sterile types of Oryza sativa L.,“Honglian”and“Wild Aborted”,bothbeing in the same Version of Hua Ai No.15.These two types of male-sterility differed in their origin of cytoplasm,since the former wasderived from the wild rice known as“Red Awn”,and the latter was adescendent of the well-known“Wild Aborted”type.Cytological diffe-rences were observed in the type and time of pollen abortion betweenthe two types.Based on these observations it is suggested that a nuc-leus-cytoplasm interaction may play an important role in such develop-mental processes.Some anatomical abnormalities were also evident in the antherdevelopment of the male-sterile types.An hypothesis of genecytoplasminteraction was emphasized by the authors to account for the develop-ment of male-sterile types in rice.更多还原