Biodegradability of Atrazine, Cyanazine and Dicamba under methanogenic condition in three soils of China
Gu, JG; Fan, YZ; Gu, JD
2003
发表期刊CHEMOSPHERE
ISSN0045-6535
卷号52期号:9页码:1515-1521
摘要Persistence and degradation of the herbicides Atrazine, Cyanazine and Dicamba were measured in laboratory microcosms incubated under methanogenic condition using three soils of China. Results showed that Atrazine was more resistant to degradation than Cyanazine and Dicamba for the 300 days of incubation. Between 30% and 40% of the initially introduced chemicals were found to be not recoverable through solvent extraction of the incubated soils. Our results also indicated that the half-life of these herbicides in the three soils generally followed: Atrazine > Cyanazine > Dicamba. Biodegradation of Cyanazine and Dicamba was further substantiated by establishing enrichment cultures in which the degradation of the respective herbicides could be accelerated by-the microorganisms. Our results suggest that biodegradation of xenobiotics can be established through enrichment culture transfer technique and non-extractability of chemicals should be taken into account in evaluation of chemicals' fate and risk. (C) 2003 Elsevier Ltd. All rights reserved.
部门归属Chinese Acad Sci, S China Sea Inst Oceanog, Guangzhou 510301, Peoples R China; Chinese Acad Sci, Shenyang Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 10015, Liaoning, Peoples R China; Univ Hong Kong, Dept Ecol & Biodivers, Lab Environm Toxicol, Hong Kong, Hong Kong, Peoples R China
关键词Atrazine Cyanazine Degradation Dicamba Enrichment Culture Herbicide Methanogenic Condition Metabolic Pathway
学科领域Environmental Sciences
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收录类别sci
资助项目LED
WOS记录号WOS:000184563200022
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被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5549
专题热带海洋环境国家重点实验室(LTO)
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Gu, JG,Fan, YZ,Gu, JD. Biodegradability of Atrazine, Cyanazine and Dicamba under methanogenic condition in three soils of China[J]. CHEMOSPHERE,2003,52(9):1515-1521.
APA Gu, JG,Fan, YZ,&Gu, JD.(2003).Biodegradability of Atrazine, Cyanazine and Dicamba under methanogenic condition in three soils of China.CHEMOSPHERE,52(9),1515-1521.
MLA Gu, JG,et al."Biodegradability of Atrazine, Cyanazine and Dicamba under methanogenic condition in three soils of China".CHEMOSPHERE 52.9(2003):1515-1521.
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