摘要
在春小麦花粉母细胞期和单核期进行短期高温杀雄处理（培养箱中穗位气温（45±0．5）℃持续30min）后，用透射电子显微镜观察小麦花器官和旗叶的超微结构。结果表明：短期高温直接使小孢子（或小孢子母细胞）和城毡层细胞中线粒体等双层膜细胞器严重破坏，并且使绒毡层细胞膨胀与小孢子粘连。而胚囊的线粒体和旗叶叶片中的线粒体及叶绿体结构变化不明显。
The ultrastructure of flower organ and flag leaf in spring wheat which had treated by short time high temperature (30 min, (45±0.5)℃ at ear position in culture chamber) was studed by using transmission electron microscope at pollen mother cell and uninucleated pollen,respective1y. The results indicated: double layer membrane organelles such as mitochondria et al in microspore (or microspore mother cell) and tapetum of male organ were destructed deeply,and tapetum cell expanded and linked with microspore. The structures of mitochondria in fema1e organ and of chloroplast in flag leaf were not effected significantly.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1997年第1期7-12,共6页
Journal of China Agricultural University
关键词
高温
小麦
雄性不育
线粒体
high temperature
wheat
male sterility
mitochondria
