摘要
对烟草雄性不育系和相应的保持系花蕾及叶片中游离脯氨酸的含量进行了分析。结果表明,花蕾中不育系的脯氨酸含量在小花蕾阶段与其保持系非常接近,但从中花蕾开始,保持系花蕾中的脯氨酸含量急剧上升,而不育系花蕾中的脯氨酸含量则基本保持稳定,因而,不育系花蕾中的脯氨酸含量在大花蕾时期明显低于其保持系;叶片中生育前期不育系的游离脯氨酸含量和相应保持系之间基本上没有大的差异,仅在生育后期存在一定的差异,但这些差异变化无规律性。因此,花蕾中游离脯氨酸含量与烟草雄性不育性有密切的关系,不育系花蕾中脯氨酸含量低是雄性不育性导致的结果;叶片中游离脯氨酸含量与烟草雄性不育性没有直接关系。
The proline contents in flower buds and leaves of tobacco of cytoplasmic male sterile （CMS） lines and their maintainer lines were anazyled. The results showed that the proline content in CMS buds was close to that in maintainer line buds at small bud stage, however, it increased rapidly in maintainer line buds beginning from mid-size bud stage, while that in CMS buds was almost unchanged. Therefore, the prohne content in CMS buds was obviously lower than that in maintainer line buds at big bud stage. There was no significant difference between free proline contents in leaves of CMS tobacco and maintainer lines, relatively obvious differences were observable at later breeding stage only, though the differences changed irregularly. It was indicated that there was a close relationship between free proline content in flower buds and male sterility of tobacco and there was no direct relationship between free proline content in leaves and male sterility of tobacco. The lower proline content in CMS buds was caused by male sterility of tobacco.
出处
《烟草科技》
EI
CAS
北大核心
2007年第5期58-61,共4页
Tobacco Science & Technology
基金
江西农业大学博士启动基金项目
江西省烟叶科学研究所资助项目"烟草雄性不育的生理基础研究"
