新质源雄性不育烟草MS革新3号雄蕊发生的细胞学观察  

A Cytological Study on Stamen Development of Cytoplasmic Male Sterile Line "Gexin 3" of Tobacco (Nicotiana tabacum L)

作　　者：刘齐元[1] 刘飞虎[2] 杨建兵[2] 侯玉平[2] 刘明求[2] 肖伏[2] 

机构地区：[1]江西农业大学农学院,江西南昌330045 [2]云南大学生命科学学院,云南昆明650091

出　　处：《江西农业大学学报》2006年第2期170-174,共5页Acta Agriculturae Universitatis Jiangxiensis

摘　　要：雄性不育烟草MS革新3号的雄性败育时期发生在雄蕊原基分化后至孢原细胞形成前,在开放花朵中很少能见到退化的雄蕊,偶或有退化雄蕊的,也没有正常花药的形成,仅有退化花丝和畸形萎缩花药,花药内空无一物。与正常烟草(保持系)子房由2心皮组成不同,雄性不育烟草MS革新3号子房绝大多数都由3心皮组成。The stamen abortion of male - sterile tobacco Gexin 3 happens from the differentiation of stamen primordial to formation of sporogenous cell. The staminodes can hardly be seen in opening flowers. Sometimes, little staminodes appear in flowers but they have no normal anther. There are degenerate filaments and abnormal anthers in staminodes and the abnormal anthers have no pollen. The ovary of pistil in male - sterile tobacco Gexin 3 has 3 carpels, while the ovary of normal tobacco （ maintainer line） has only 2 carpels.

关 键 词：烟草 胞质雄性不育系 雄蕊败育 

分 类 号：S572.01[农业科学—烟草工业]