热激对温敏核不育系“安农S-1”花药生理变化的影响  

Changes of bio-physical characters in anthers of thermo-sensitive genic male sterile(TGMS) rice 'Annong S-1' under heat shock condition.

作　　者：肖辉海[1] 

机构地区：[1]湖南农业大学理学院

出　　处：《中国生态农业学报》2006年第2期40-42,共3页Chinese Journal of Eco-Agriculture

基　　金：湖南省教育厅项目(04C417)资助

摘　　要：试验研究热激对温敏核不育系“安农S-1”花药生理变化的影响结果表明,温敏核不育系“安农S-1”在花粉母细胞形成至减数分裂期经热激(38℃)处理后,其花药中游离氨基酸总量、天冬氨酸和丙氨酸含量均显著高于低温(23℃)处理;而游离脯氨酸和可溶性蛋白质含量则显著低于低温处理。对照经热激(38℃)处理后,其花药中游离氨基酸和可溶性蛋白质含量与低温处理基本一致,这些生理变化可能影响花粉母细胞正常的形成和减数分裂,以致花粉不能正常发育并最终导致花粉败育。The changes of bio-physical characters in anthers of thermo-sensitive genie male sterile rice ‘Annong S-1＇ under heat shock condition were studied. The results show that the totals of free amino acids, the contents of alanine and aspartic acid in anthers of ‘Annong S-1＇ through heat shock （38℃） are higher than those through low temperature （23℃）, and the contents of proline and soluble proteins through heat shock （38℃） are lower than those through low temperature （23℃）. However, the changes are less in anthers of the control materials through heat shock （38℃） and low temperature （23℃）. The changes affect possibly the normal meiosis of pollen mother cells and development of pollens, which leads to the sterility of pollens.

关 键 词：温敏核不育系 可溶性蛋白质 游离氨基酸 热激 

分 类 号：S511.210.3[农业科学—作物学] S511