Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions

doi:10.1016/j.chemosphere.2018.01.149

QIBEBT-IR

	Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions
	Zhu, Fan-Ping 1; Duan, Jian-Lu 2; Yuan, Xian-Zheng1 ; Shi, Xiao-Shuang2 ; Han, Zhen-Lian 2; Wang, Shu-Guang 1
	2018-05-01
发表期刊	CHEMOSPHERE
ISSN	0045-6535
卷号	199 页码:138-146
摘要	Bensulfuron methyl (BSM), one of the most widely used herbicides in paddy soils, is frequently detected in natural and artificial aquatic systems. However, BSM transformation under methanogenic conditions has not been given sufficient attention. In this study, BSM elimination and transformation by anaerobic enrichment cultures were investigated. The results showed that BSM can be mineralized to methane through hydrolysis, adsorption, and biodegradation under a methanogenic environment, The adsorption led to protein static quenching in the extracellular polymeric substances (EPSs) of the enrichment cultures. Specifically, BSM mainly reacted with the amine, amide, amino acid, and amino sugar functional groups in proteins. BSM hydrolysis and biodegradation occurred through the breakage of the sulfonylurea bridge and sulfonyl amide linkage. The cleavage of the sulfonylurea bridge occurred in both hydrolysis and biodegradation, while the cleavage of the sulfonyl amide linkage only occurred in hydrolysis. These results elucidated the complex transformation of BSM under methanogenic conditions, which will advance the studies on sulfonylurea herbicide biotransformation and hazard assessment in the environment. (C) 2018 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Bensulfuron Methyl Anaerobic Enrichment Cultures Methanogenic Conditions Hydrolysis Adsorption Biodegradation
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1016/j.chemosphere.2018.01.149
关键词[WOS]	EXTRACELLULAR POLYMERIC SUBSTANCES ; ACTIVATED-SLUDGE ; SULFONYLUREA HERBICIDES ; BACILLUS-SUBTILIS ; SERUM-ALBUMIN ; DEGRADATION ; WATER ; PRODUCTS ; SURFACE ; FIELDS
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000428973200017
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/10774
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Yuan, Xian-Zheng; Wang, Shu-Guang
作者单位	1.Shandong Univ, Sch Environm Sci & Engn, Shandong Key Lab Water Pollut Control & Resource, Jinan 250100, Shandong, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Key Lab Biofuels, Qingdao 266107, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Fan-Ping,Duan, Jian-Lu,Yuan, Xian-Zheng,et al. Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions[J]. CHEMOSPHERE,2018,199:138-146.
APA	Zhu, Fan-Ping,Duan, Jian-Lu,Yuan, Xian-Zheng,Shi, Xiao-Shuang,Han, Zhen-Lian,&Wang, Shu-Guang.(2018).Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions.CHEMOSPHERE,199,138-146.
MLA	Zhu, Fan-Ping,et al."Hydrolysis, adsorption, and biodegradation of bensulfuron methyl under methanogenic conditions".CHEMOSPHERE 199(2018):138-146.