异丙甲草胺及其高效体对我国南方潮土微生物的影响Ⅰ.过氧化氢酶

应用生态学报 ›› 2005, Vol. 16 ›› Issue (5): 895-898.

异丙甲草胺及其高效体对我国南方潮土微生物的影响Ⅰ.过氧化氢酶

周瑛^1,2, 刘维屏¹, 王婷婷²

1. 浙江大学环境科学研究所, 杭州 310029;
2. 浙江工业大学化工与材料学院, 杭州 310032

收稿日期:2004-03-22 修回日期:2004-07-03 出版日期:2005-05-15 发布日期:2005-05-15
通讯作者: 刘维屏, Tel:0571-86968420;E-mail:wliu@zjut.edu.cn
基金资助:
国家自然科学基金项目(30270767)和国家杰出青年科学基金资助项目(20225721).

Effects of pesticides metolachlor and S-metolachlor on soil microorganisms in aquisols of Southern China Ⅰ Catalase activity

^1,2

1. Institute of Environmental Science, Zhejiang University, Hangzhou 310029, China;
2. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China

Received:2004-03-22 Revised:2004-07-03 Online:2005-05-15 Published:2005-05-15

摘要/Abstract

摘要： 研究了0、5、20和100mg·kg^-1浓度的异丙甲草胺及其高效体对土壤过氧化氢酶活性的影响.结果表明,不同浓度的异丙甲草胺处理对过氧化氢酶活性的影响不同,20mg·kg^-1处理的土壤过氧化氢酶受到激活的程度最大,且一直处于激活状态,5mg·kg^-1处理的土壤过氧化氢酶在前期受到抑制,后期则100mg·kg^-1处理的土壤过氧化氢酶受激活较强.不同浓度的金都尔对供试土壤过氧化氢酶活性的影响表现为先激活、后抑制、再激活,并且后期100mg·kg^-1处理的激活程度最大;5mg·kg^-1和100mg·kg^-1处理的异丙甲草胺对供试土壤生态环境的影响和危害可能大于金都尔,但20mg·kg^-1处理则表现出例外.

关键词: 异丙甲草胺, 金都尔, 过氧化氢酶, 手性农药, 土壤微生物

Abstract: This paper studied the effects of different concentrations (0,5,20,and 100 mg穔g^-1) metolachlor and its enantiomer S-metolachlor (Dual Gold) on soil catalase activity.The results showed that 20 mg穔g^-1 metolachlor had the most successive stimulating effect,5 mg穔g^-1 metolachlor had an inhibitory effect in the early period,while 100 mg穔g^-1 metolachlor had a stimulating effect in the late period.Different concentrations Dual Gold displayed a tendency stimulation-inhibition-stimulation.5 and 100 mg穔g^-1 metolachlor might have more damage on soil ecosystem than different concentrations Dual Gold.

Key words: Metolachlor, S-Metolachlor (Dual Gold), Chiral pesticide, Catalase activity, Soil microorganisms

中图分类号:

X131.1

周瑛, 刘维屏, 王婷婷. 异丙甲草胺及其高效体对我国南方潮土微生物的影响Ⅰ.过氧化氢酶[J]. 应用生态学报, 2005, 16(5): 895-898.

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