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Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate
Yu, Ying1; Zhang, Haijun2; Zhou, Qixing3
关键词Methamidophos Glyphosate Dehydrogenase Phosphatase Soil Available p Pesticide Biodegradation
刊名SOIL & SEDIMENT CONTAMINATION
2011
DOI10.1080/15320383.2011.594110
20期:6页:688-701
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
关键词[WOS]PHOSPHONATE HERBICIDE GLYPHOSATE ; POLLUTED SOILS ; DEGRADATION ; MINERALIZATION ; ENZYMES ; MICROORGANISMS ; INVERTASE ; COMMUNITY ; FATE
英文摘要The heavy use of organophosphorus pesticides in northeastern China strongly affects the ecological functions and the quality of the soil environment. In this work, a 30-day soil incubation experiment was conducted to evaluate the potential of using soil available P and the activities of soil dehydrogenase and acid phosphatase as indicators of the application of methamidophos and glyphosate. Two kinds of unpolluted soils, phaiozem and burozem, were selected as the test soils. The higher application rate of organophosphorus pesticide to the two soils caused more release of PO(4)(3-) which finally entered the soil available P pool, suggesting that soil available P is one of the effective chemical markers for biodegradation of organophosphorus pesticides. Methamidophos exhibited a significant inhibitory effect on the activity of soil dehydrogenase. The extent of enzyme inhibition was almost positively correlated with the insecticide concentration, and the enzyme activity was gradually restored after day 15. However, its effect on soil acid phosphatase activity ( stimulation or inhibition) seemed to be indefinite, and varied with the application rate, soil type, and incubation time. In the case of glyphosate, soil acid phosphatase activity was depressed significantly and the depressing extent could be a function of herbicide concentration and incubation time, but soil dehydrogenase activity showed an irregular variation with the herbicide application rate and soil type. In general, dehydrogenase activity was a good biochemical indicator for the biodegradation of methamidophos, but for glyphosate biodegradation the indicator was acid phosphatase activity.
语种英语
WOS记录号WOS:000298740700005
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142612
专题中国科学院大连化学物理研究所
作者单位1.Dalian Maritime Univ, Coll Environm Sci & Engn, Dalian 116026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China
3.Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
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GB/T 7714
Yu, Ying,Zhang, Haijun,Zhou, Qixing. Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate[J]. SOIL & SEDIMENT CONTAMINATION,2011,20(6):688-701.
APA Yu, Ying,Zhang, Haijun,&Zhou, Qixing.(2011).Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate.SOIL & SEDIMENT CONTAMINATION,20(6),688-701.
MLA Yu, Ying,et al."Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate".SOIL & SEDIMENT CONTAMINATION 20.6(2011):688-701.
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