| 玉米C型胞质雄性不育系花粉败育的细胞学研究 |
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| 引用本文： | 陈伟程,李桂珍. 玉米C型胞质雄性不育系花粉败育的细胞学研究[J]. 华北农学报, 1987, 0(1) |
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| 作者姓名： | 陈伟程 李桂珍 |
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| 作者单位： | 河南农业大学玉米研究所 郑州(陈伟程),河南农业大学玉米研究所 郑州(李桂珍) |
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| 摘 要： | 利用光学和电子显微镜对玉米C型胞质雄性不育系和保持系的花药与小孢子发育过程进行对比观察.结果表明,不育系小孢子初始败育发生在幼龄小孢子时期,单核中期基本上完全败育,绒毡层到开花前崩溃.在小孢子初始发育时期,不育系绒毡层细胞的质体呈“杯状”变态.导致雄性不育主要的细胞学原因是绒毡层细胞结构、功能的失常.
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| 关 键 词： | 玉米 C型胞质雄性不育系 花粉败育保持系 小孢子发育 |
A CYTOLOGICAL STUDY IN POLLEN ABORTION IN C-CYTOPLASMIC MALE-STERILE CORN ( ZEA MAYS, L. ) |
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| Chen Weicheng Li Guizhen. A CYTOLOGICAL STUDY IN POLLEN ABORTION IN C-CYTOPLASMIC MALE-STERILE CORN ( ZEA MAYS, L. )[J]. Acta Agriculturae Boreali-Sinica, 1987, 0(1) |
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| Authors: | Chen Weicheng Li Guizhen |
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| Abstract: | The development processes of anthers and microspores of C-cytoplas-mic male-sterile lines and its maintainers in corn were observed and compared by the light and the electron microscope. The results of the study showed that the earliest abortion of the C-microspores occurred in the young microspore stage, their full abortion occurred in the miol-1-nucleate microspore stage, and the disintegration of the tapetum occurred before flowering stage. At the young microspore stage, numerous "cup shaped" plastids can be observed in the C-tapetal cells. The mainly cytological reason resulting the abortion is the abnormal function of the tapetal cells. |
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| Keywords: | Corn C-cytoplasmic male sterility inbred Pollen abortion maintainer Microspore development |
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