国家自然科学基金重点项目(40432005);国家重点基础研究发展规划项目(2002CB410810/9);中国科学院知识创新工程重要方向项目(KZCX32SW2429)资助
- Bu Yuanqing
Bu Yuanqing
Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China
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Luo Yongming
Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China
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- Li Zhengao
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为探讨赤子爱胜蚓谷胱甘肽(GSH)和丙二醛(MDA)含量变化对重金属污染土壤生态毒性的指示作用,在试验室模拟条件下,利用人工土壤和自然土壤,研究了重金属含量与蚯蚓GSH和MDA含量变化的剂量效应关系。结果显示,在人工土壤试验中,Cu可诱导蚯蚓GSH和MDA含量上升,暴露2 d、7 d、14 d后,Cu浓度与蚯蚓GSH含量的相关系数分别为0.556、0.807和0.775,与MDA含量的相关系数分别为0.760、0.672和0.544,均存在显著的剂量效应关系(p<0.05)。自然土壤试验结果显示,赤子爱胜蚓的GSH和MDA含量与土壤Cu全量的偏相关系数分别为-0.830(p<0.001)和-0.599(p<0.05),与Cd全量的偏相关系数分别为-0.697(p<0.05)和-0.690(p<0.05)。同时发现,赤子爱胜蚓GSH含量变化对土壤重金属响应的敏感性要高于MDA。
In order to explore potential of the variation of GSH and MDA levels in Eisenia fetida as bio-indicators in monitoring heavy metal contamination of soil,effect of copper on Eisenia fetida was studied using artificial soil and contaminated agricultural soil.Results show that the levels of GSE and MDA in E.fetida are significantly related to copper in the artificial soil,with correlation coefficients being 0.556,0.807 and 0.775 between Cu concentration and levels of GSH and 0.760,0.672 and 0.544 between Cu concentration and levels of MDA,respectively after exposure of the worms for 2,7 and 14 days.Both showed close dose-effect relationship.In natural soil,partial relationship was found between Cu content and levels of GSH and MDA in the worms with correlation coefficients being -0.830 (p< 0.001) and -0.599 (p< 0.05),respectively,and between Cd content and levels of GSH and MDA in the worms as well,with correlation coefficients being -0.697 (p< 0.05) and -0.690 (p< 0.05),respectively.Moreover,it was also found that GSH level in the worms was more sensitive than MDA level to soil heavy metals.
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卜元卿,骆永明,滕应,李振高,刘欣.赤子爱胜蚓谷胱甘肽和丙二醛含量变化指示重金属污染土壤的生态毒性[J].土壤学报,2008,45(4):616-621. DOI:trxb10.11766/200611260401 Bu Yuanqing, Luo Yongming, Teng Ying, Li Zhengao, Liu Xin. VARIATION OF GSH AND MDA LEVELS IN EISENIA FETIDA AS INDICATOR OF ECO-TOXICITY OF HEAVY METAL CONTAMINATED SOIL[J]. Acta Pedologica Sinica,2008,45(4):616-621.
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- 收稿日期:2006-11-26
- 最后修改日期:2007-03-08
- 在线发布日期: 2013-05-10
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