| 三苯基锡对青萍生长及酶活性的影响 |
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| 引用本文： | 宋志慧,刘歌.三苯基锡对青萍生长及酶活性的影响[J].生态毒理学报,2010,5(1):118-122. |
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| 作者姓名： | 宋志慧 刘歌 |
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| 作者单位： | 青岛科技大学环境与安全工程学院,青岛,266042;青岛科技大学环境与安全工程学院,青岛,266042 |
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| 基金项目： | 山东省社会科学规划项目（No. 03CJZ03）；山东省博士基金项目（No. 03DS125）；山东省高等学校实验技术研究项目（No. 2005-188） |
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| 摘 要： | 以青萍(Lemna mino)为实验生物,通过研究不同浓度(0、0.04、0.08、0.12、0.16、0.20mg·L-1)的三苯基锡(TPT)对青萍生长发育及过氧化氢酶(CAT)和过氧化物酶(POD)活性的影响,初步探讨了TPT对水生浮萍植物的毒性作用,以期为及时发现并排除TPT污染提供理论和直观依据.实验结果表明:培养4d后,TPT对青萍叶片生长量的半数抑制浓度(IC50)为0.10mg·L-1;CAT、POD活性随TPT处理浓度的升高显著升高(各暴露组与对照组均差异显著,p<0.05).结果显示,TPT对青萍具有明显的毒性作用,CAT和POD活性的变化可作为反映TPT污染胁迫的敏感指标.
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| 关 键 词： | 三苯基锡 青萍 过氧化氢酶 过氧化物酶 IC50 |
| 收稿时间： | 2009/2/25 0:00:00 |
| 修稿时间： | 4/5/2009 12:00:00 AM |
Toxic Effects of Triphenyltin on the Growth and the Related Enzymic Activities of Lemna minor |
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| SONG Zhi-hui and LIU Ge.Toxic Effects of Triphenyltin on the Growth and the Related Enzymic Activities of Lemna minor[J].Asian Journal of Ecotoxicology,2010,5(1):118-122. |
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| Authors: | SONG Zhi-hui and LIU Ge |
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| Institution: | College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042 |
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| Abstract: | Toxic effects of triphenyltin(TPT)(0,0.04,0.08,0.12,0.16,0.20mg·L-1)on the growth and the related enzymic(catalase(CAT),peroxide(POD))activities of Lemna minor was researched in this study.Results showed that the 96h IC50 of TPT for the number of Lemna minor's leaf was 0.10mg·L-1.The CAT and POD activities increased significantly with the increasing of TPT concentrations(compared with the control,p<0.05).The results indicated that TPT has toxic effect on Lemna minor and the activity of CAT and POD can be used as the sensitive indicator of TPT in aquatic environment. |
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| Keywords: | IC50 |
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