| 马协不育系花药超微结构观察 |
| |
| 引用本文： | 关和新,朱英国.马协不育系花药超微结构观察[J].作物学报,2000,26(6):913-918. |
| |
| 作者姓名： | 关和新 朱英国 |
| |
| 作者单位： | 武汉大学遗传研究所， 湖北武汉， 430072 |
| |
| 基金项目： | 国家自然科学基金资助项目 |
| |
| 摘 要： | 超微结构观察表明马协不育系药隔维管束无导管， 仅2～3个筛分子， 维管束薄 壁细胞液泡膜破裂， 线粒体有很大的电子透明区， 而同期可育花药药隔维管束有2个导管 ， 6～7个筛分子， 维管束薄壁细胞液泡少。 单核期不育花药绒毡层提前解体， 液泡膜破 裂， 二核期不育花粉外壁基粒棒少， 且分布不均匀， 线粒体电子透明区不
|
| 关 键 词： | 水稻 细胞质雄性不育 超微结构 |
| 收稿时间： | 1999-07-02 |
| 修稿时间： | 1999-12-15 |
Ultrastructural Observation of Maxie Sterile Anther(Oryza sativa L.) |
| |
| WTBZGUAN He,Xin,ZHU Ying,Guo.Ultrastructural Observation of Maxie Sterile Anther(Oryza sativa L.)[J].Acta Agronomica Sinica,2000,26(6):913-918. |
| |
| Authors: | WTBZ]GUAN He Xin ZHU Ying Guo |
| |
| Institution: | Institute of Genetics, Wuhan University, Wuhan 430072 |
| |
| Abstract: | It was shown that there were two tracheary elements and six or seven sieve elements in vascular bundle of Maxie fertile anther. Numerous mitochondri a, together with a few vacuoles were also observed at uninucleate stage. By cont ra st in sterile anther,no tracheary element was observed, and there were only two o r three sieve elements. Abnormal mitochondria,numerous vacuole with broken tonop last were observed in parenchymatous cells,and aborted tapetum with broken tonop last were also observed at uninucleate stage. At binucleate stage, the sterile p o llen showed abnormal exine, mitochondria and destroyed tonoplast. We suggested t h at abnormal vascular bundle and aborted tapetum could not supply enough nutrient to pollen,and tonoplast broken may be attributed to ROS(reactive oxygen species ) toxic. |
| |
| Keywords: | Rice ( Oryza sativa L ) Cytoplasmic mal e sterility Ultrastructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《作物学报》浏览原始摘要信息 |
| 点击此处可从《作物学报》下载免费的PDF全文 |
|
