| 不同预处理对有丝分裂的影响 |
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| 引用本文： | 齐志广,秘彩莉,柏峰,黄占景,沈银柱.不同预处理对有丝分裂的影响[J].河北师范大学学报(自然科学版),2003,27(1):88-91. |
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| 作者姓名： | 齐志广 秘彩莉 柏峰 黄占景 沈银柱 |
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| 作者单位： | 河北师范大学,生命科学学院,河北,石家庄,050016 |
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| 基金项目： | 河北师范大学首批重点课程建设资助项目 |
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| 摘 要： | 试验观察了不同预处理方法对洋葱根尖有丝分裂的影响，研究表明，经0.2%秋水仙素处理能够极显著地提高有丝分裂指数，为对照的3.20倍；低温处理也能极显著地提高有丝分裂指数，为对照的2.57倍。在一般教学实验中，低温处理为观察有丝分裂首选的预处理方法。
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| 关 键 词： | 细胞有丝分裂 低温预处理 有丝分裂指数 秋水仙素 药物预处理 洋葱 |
| 文章编号： | 1000-5854(2003)01-0088-04 |
| 修稿时间： | 2002年4月19日 |
The Effect of Different Pretreatment on Mitosis |
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| QI Zhi-guang,BI Cai-li,BAI Feng,HUANG Zhan-jing,SHEN Yin-zhu.The Effect of Different Pretreatment on Mitosis[J].Journal of Hebei Normal University,2003,27(1):88-91. |
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| Authors: | QI Zhi-guang BI Cai-li BAI Feng HUANG Zhan-jing SHEN Yin-zhu |
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| Abstract: | The effect of different pretreatment on mitosis of onion root tip was studied. The results showed that among the four pretreatments, the 0.2% colchicines pretreatment could increase the mitotic index vitally apparently, which was 3. 2 times of that of the control; the low-temperature pretreatment could also increase the mitotic index by 1.57 times, and it is also the primary choice in most of the teaching experiments. |
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| Keywords: | mitosis pretreatment mitotic index colchicines low-temperature |
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