| 萍乡显性雄性核不育水稻超微结构研究 |
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| 引用本文： | 贺浩华,贺国良,等.萍乡显性雄性核不育水稻超微结构研究[J].西北植物学报,2002,22(6):T005-T006. |
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| 作者姓名： | 贺浩华 贺国良 |
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| 作者单位： | 江西农业大学农学院,南昌,330045 |
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| 基金项目： | 江西省跨世纪学术和技术带头人计划、国家自然科学基金 ( 3986 0 0 4 )，江西省自然科学基金 ( 980 31)资助项目 |
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| 摘 要： | 利用电镜技术对萍乡显性核不育水稻可育株和不育株花粉形成及发育过程和药壁组织的基本结构及其发育进行了研究。导致了其不育花粉败育的主要原因有：（1）绒毡层细胞表现为延迟解体，乌氏体不能与小孢子细胞壁的形成，特别是纯合不育株绒毡层细胞存在乌氏体的异位分布；（2）药隔维管束异常，导致营养物质运输缺乏，薄壁细胞液泡化，排列紊乱，杂合不育株薄壁细胞互相融合，出现核转移的独特现象。
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| 关 键 词： | 萍乡显性雄性核不育水稻 超微结构 花粉 花药 不育种质 |
| 文章编号： | 1000-4025(2002)06-1401-05 |
The ultrastructural study of pollen abortion in Pingxiang dominant genic male sterile rice |
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| HE Hao hu,HE Guo liang,ZHU Chang lan,LIU Yi bai,PENG Xiao song.The ultrastructural study of pollen abortion in Pingxiang dominant genic male sterile rice[J].Acta Botanica Boreali-Occidentalia Sinica,2002,22(6):T005-T006. |
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| Authors: | HE Hao hu HE Guo liang ZHU Chang lan LIU Yi bai PENG Xiao song |
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| Abstract: | Ultrastructural changes in the process of the microspore and anther development of Pingxiang Dominant Genic Male Sterile Rice(PxDGMSR) were studied by the electron microscope in the thesis.The main reasons of pollen abortion of sterile plants are (1) Tapetum cell delayed disintegration.The ubisch body do not developed into microspore wall.Especially,ubisch body are abnormally distributed in tapetal cell of homozygous sterile plants;(2) Aberrant vascular bundle of connective tissue is the important cause of PxDGMSR abortion.Vascular bundle parenchyma cell vacuolated and arranged irregularly.The vascular bundle parenchyma cell of heterozygous plants mixed together and its nucleus were transferred |
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| Keywords: | dominant genic male sterile rice ultrastructure pollen anther |
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