| SO2对蚕豆根尖细胞微核的诱导作用 |
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| 引用本文： | 仪慧兰,孟紫强.SO2对蚕豆根尖细胞微核的诱导作用[J].生态学报,2003,23(2):292-296. |
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| 作者姓名： | 仪慧兰 孟紫强 |
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| 作者单位： | 山西大学环境医学与毒理学研究所,生命科学与技术学院,太原,030006 |
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| 基金项目： | 山西省教委环境科学重点学科基金资助项目，山西省自然科学基金资助项目~~ |
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| 摘 要： | 应用蚕豆根尖微核试验，对SO2的遗传毒性效应进行了研究。结果表明：一定浓度范围内（0.108-14.00mg/m^3），蚕豆根尖微核细胞数与SO2浓度间呈正相关，太原市大气污染严重的冬季采暖期根尖细胞微核率明显高于非采暖期；SO2浓度0.604mg/m^3处理24h和48h或2.80-28.00mg/m^3熏气处理4h可使蚕豆根尖中具有微核的细胞数明显增加，结果表明，低浓度SO2较长时间接触或高浓度短期接触均可引起蚕豆根尖细胞遗传物质的损伤，应用蚕豆根尖细胞微核实验可对大气SO2污染进行生物监测。SO2（2.80-28.00mg/m^3）熏气实验中，接触时间延长能导致根尖细胞微核率下降，2.80mg/m^3熏气组下降较快，14.00mg/m^3熏气组下降较慢，研究结果提示，在运用蚕豆根尖微核实验监测环境SO2污染时要考虑蚕豆的染毒方式，避免假阴性结果的出现。
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| 关 键 词： | SO2 蚕豆根尖细胞 微核 诱导作用 空气污染 检测 |
| 文章编号： | 1000-0933(2003)02-0292-05 |
| 收稿时间： | 2001/10/12 0:00:00 |
Effect of sulfur dioxide on the micronuclei formation in Vicia faba root tips |
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| YI Huilan and MENG Ziqiang.Effect of sulfur dioxide on the micronuclei formation in Vicia faba root tips[J].Acta Ecologica Sinica,2003,23(2):292-296. |
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| Authors: | YI Huilan and MENG Ziqiang |
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| Institution: | Institute of Environmental Medicine and Toxicology; School of Life Science and Technology; Shanxi University; Taiyuan; China |
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| Abstract: | Sulfur dioxide (SO 2) is a ubiquitous air pollutant, present in low concentrations in the urban air, and in higher concentrations in the working environments. Consequently, it has become important to study the toxic effects of SO 2 in the environment to humans. Vicia faba have been used for evaluating chromosomal aberrations since the early 1920s. In the present study, the Vicia root-micronucleus assays was selected to assess for DNA aberrations induced by sulfur dioxide. The V.faba test was essential ca... |
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| Keywords: | sulfur dioxide Vicia faba micronucleus |
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