| 光周期敏感核不育水稻农垦58S不育花药的显微结构变化 |
| |
| 引用本文： | 王台,童哲.光周期敏感核不育水稻农垦58S不育花药的显微结构变化[J].作物学报,1992,18(2):132-135. |
| |
| 作者姓名： | 王台 童哲 |
| |
| 作者单位： | 中国科学院植物研究所 |
| |
| 基金项目： | 中国高技术研究发展计划资助课题 |
| |
| 摘 要： | 本文观察了光敏感核不育水稻农垦58S 在小孢子发生和发育过程中不育和可育花药的显微结构差异。结果表明,不育花药在小孢子母细胞时期和减数分裂期,药隔维管束无导管和筛管,在单核晚期,有分化较差的导管和筛管,其薄壁细胞发育不良或退化,鞘细胞皱缩,由绒毡层的细胞质构成的原生质团不解体。药隔维管束发育异常和绒毡层延迟解
|
| 关 键 词： | 光周期敏感核不育水稻 不育花药 显微结构 |
| 收稿时间： | 1990-12-03 |
| 修稿时间： | 1991-02-05 |
Changes in Anther Microstructure of the Photoperiod-Sensitive Genic Male Sterile Rice |
| |
| Wang Tai Tong Zhe.Changes in Anther Microstructure of the Photoperiod-Sensitive Genic Male Sterile Rice[J].Acta Agronomica Sinica,1992,18(2):132-135. |
| |
| Authors: | Wang Tai Tong Zhe |
| |
| Institution: | Institute of Botany; Academia Sinica; Beijing100044 |
| |
| Abstract: | A photoperiod-sensitive genic male-sterile rice Nongken 58S (Oryza sativa L.japonica)has been found to be male-sterile under long day cycles (LD) and fer-tile in short day cycles (SD).Observation on microstructure in cross-sections ofLD-treated and SD-treated anthers showed:1.there were vessel elements and sievetubes in SD,but not in LD in vascular bundle of the anther septum at microsporemother cell stage and meiotic stage.2.Vessel elements,sieve tubes and paranchemacells developed poorly,sheath cells were wrinkled or out of shape in LD-treated an-thers at late uninueleate stage.3.In contrast to the SD treated anthers,protoplasmicmass composed of cytoplasm of tapetal cells in LD-treated anthers has not degradedat uninucleate stage.It is supposed that LD-induced active physiologically compounds have probablymulti-points of action,and abnormal alternations in the vascular bundle and tapetumtissue may reduce nutrient supplies to developing microspores in the LD-treated an-thers.This may be one of the reasons for sterility of the male-sterile mutant of rice. |
| |
| Keywords: | Photoperiod-sensitive genic male-sterile rice Anther Microstructure |
| 本文献已被 CNKI 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 |
|
