| 松香草体细胞染色体银染色研究 |
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| 引用本文： | 熊治廷,.松香草体细胞染色体银染色研究[J].广西植物,1990,10(3):211-213. |
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| 作者姓名： | 熊治廷 |
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| 作者单位： | 中国科学院武汉植物研究所 武汉 |
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| 摘 要： | 松香草(Silphium perfoliatum, 2n=14)全部染色体着丝点和第5及第7对染色体短臂端部显示稳定的Ag-带。第1,2和6对染色体长臂居间区各有一居间带呈不稳定银染正反应。推测第5和第7对染色体为NOR染色体NOR分别位于两对染色体短臂末端。
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| 关 键 词： | 松香草 染色体 银染色 |
SILVER STAINING OF SOMATIC CHROMOSOMES OF SILPHIUM PERFOLIATUM |
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| Abstract: | All centromeres and the short arm ends of the 5th and the 7th pair of chromosmoes in root-tip cells of Silphium perfoliatum showed stable Ag-bands-when staining with 75% AgNO3, whereas intercalary Ag-bands on the long arms of the 1st, 2nd and 6th chromosomes were unstable. There were maximally 4 nucleoli in interphase nucleus. It is inferred that the 5th and 7th chromosomes are NOR-chromosomes, NORS are located at the ends of the four chromosomes. |
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