摘要
应用受温度控制的太行花 ( Taihangia rupestris Yü et Li)雄蕊发育或败育的试管花实验系统 ,比较研究了雄蕊发育和败育过程的细胞学和细胞化学变化。结果表明 ,雄性败育过程具有以下的细胞学和细胞化学特点 :雄蕊败育的细胞学变化发生在小孢子母细胞时期。在此时期以前从雄蕊原基到初生小孢子母细胞时期 ,其细胞学过程是正常的 ;在这正常的细胞学过程时期 ,细胞中没有任何多糖的累积 ,而在正常发育的雄蕊中这种累积本应在花丝和花药中大量发生。作者认为 。
Using in vitro flower experimental system of Taihangia rupestris Yü et Li in which development or abortion of stamens could be controlled by temperature, the cytological and cytochemical changes in both development and abortion processes of the stamens were comparatively studied.Cytological changes of the stamen abortion initiated at the microsporocyte stage before which normal cytological process were seen from stamen primordium to primary microsporocyte stage. However, despite of the normal cytological process, polysaccharide accumulation was never observed in the cells of anther and filament where as in the normally developing stamens polysaccharide accumulation must largely occurred in those cells mentioned above.The author considered that such cytochemical changes prior to the morphological deviances might be of great significance to approach the cause of temperature induced male sterility.
基金
国家自然科学基金
