| 蚕豆花粉母细胞染色体畸变同染色质胞间转移的关系 |
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| 引用本文： | 王新宇,郑国锠.蚕豆花粉母细胞染色体畸变同染色质胞间转移的关系[J].Acta Botanica Sinica,1985(2). |
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| 作者姓名： | 王新宇 郑国锠 |
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| 作者单位： | 兰州大学细胞生物学研究室，兰州大学细胞生物学研究室 |
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| 摘 要： | 采用压碎、石蜡切片及植物染色体分带技术观察蚕豆花粉母细胞减数分裂过程发现:1.蚕豆花粉母细胞减数分裂的凝线期也出现染色质胞间转移现象;2.在8.08%的花粉母细胞内,染色体偏离正常的数目(n=6);3.染色体结构也有显著改变,其中包括染色体断裂、桥和长度的增减;4.出现双核和无核的花粉母细胞。大量证据表明,这些畸变现象同凝线期的染色质胞间转移有关。
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| 关 键 词： | 花粉母细胞 染色体畸变 细胞融合 蚕豆 |
THE RELATIONS BETWEEN CHROMOSOME ABERRATION AND THE INTERCELLULAR CHROMATIN MIGRATION IN POLLEN MOTHER CELLS OF VICIA FABA |
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| Authors: | Wang Xin-yu Zheng Guo-chang |
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| Abstract: | Squash,paraffin section and chromosome banding technique were used to observe the condition of the intercellular chromatin migration (cytomixis) and chromo- some aberration in pollen mother cells (PMCs) of Vicia faba.The following phenomena were found in our experiments; 1.Cytomixis also occurred at synizesis stage.2.8.08% of PMCs had a chromosome number deviating from their normal numbers (n=6).3. The changes in chromosome structure included the chromosomes with a increased or de- creased length and chromosome bridges.4.Appearance of anucleate and binucleate PMCs.Plenty of evidence shows that the last three phenomena are related to the first one. |
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| Keywords: | Pollen mother cells Chromosome aberration Cytomixis Vicia faba |
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