Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate

doi:10.1080/15320383.2011.594110

	Using Soil Available P and Activities of Soil Dehydrogenase and Phosphatase as Indicators for Biodegradation of Organophosphorus Pesticide Methamidophos and Glyphosate
	Yu, Ying 1; Zhang, Haijun 2; Zhou, Qixing 3
刊名	SOIL & SEDIMENT CONTAMINATION
	2011
卷号	20 期号:6 页码:688-701
关键词	Methamidophos Glyphosate Dehydrogenase Phosphatase Soil Available p Pesticide Biodegradation
ISSN号	1532-0383
DOI	10.1080/15320383.2011.594110
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.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000298740700005
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/121937]
专题	中国科学院沈阳应用生态研究所
通讯作者	Yu, Ying
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
推荐引用方式 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.