Rapid degradation of 2,4-dichlorophenoxyacetic acid facilitated by acetate under methanogenic condition

doi:10.1016/j.biortech.2017.01.069

QIBEBT-IR > 工业生物燃气研究组

	Rapid degradation of 2,4-dichlorophenoxyacetic acid facilitated by acetate under methanogenic condition
	Yang, Zhiman; Xu, Xiaohui; Dai, Meng; Wang, Lin; Shi, Xiaoshuang; Guo, Rongbo
	2017-05-01
发表期刊	BIORESOURCE TECHNOLOGY
卷号	232 页码:146-151
摘要	Acetate can be used as an electron donor to stimulate 2,4-dichlorophenoxyacetic acid (2,4-D), which has not been determined under methanogenic condition. This study applied high-throughput sequencing and methanogenic inhibition approaches to investigate the 2,4-D degradation process using the enrichments obtained from paddy soil. Acetate addition significantly promoted 2,4-D degradation, which was 5-fold higher than in the acetate-unsupplemented enrichments in terms of the 2,4-D degradation rate constant. Dechloromonas and Pseudomonas were the dominant 2,4-D degraders. Methanogenic inhibition experiments indicated that the 2,4-D degradation was independent of methanogenesis. It was proposed that the accelerated 2,4-D degradation in the acetate-supplemented enrichment involved an unusual interaction, where members of the acetate oxidizers primarily oxidized acetate and produced H-2. H-2 was utilized by the 2,4-D degraders to degrade 2,4-D, but also partially consumed by the hydrogenotrophic methanogens to produce methane. The findings presented here provide a new strategy for the remediation of 2,4-D-polluted soils. (C) 2017 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Acetate 2 Bacterial Community 4-dichlorophenoxyacetic Acid
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI	10.1016/j.biortech.2017.01.069
关键词[WOS]	MICROBIAL COMMUNITY STRUCTURE ; REDUCTIVE DECHLORINATION ; ANAEROBIC DECHLORINATION ; ENERGY-CONSERVATION ; REDUCING BACTERIUM ; SULFATE ; SOIL ; BIODEGRADATION ; DEHALOGENATION ; STRAIN
收录类别	SCI
语种	英语
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
项目资助者	National Natural Science Foundation of China(21307143) ; Key Research & Development Project of Shandong(2015GSF117016) ; National "Twelve-Five" Science and Technology Support Program Project of China(2014BAC31B01)
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:000400867100019
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/9623
专题	工业生物燃气研究组
作者单位	Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Ind Engn Lab Biogas Prod & Utilizat, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Yang, Zhiman,Xu, Xiaohui,Dai, Meng,et al. Rapid degradation of 2,4-dichlorophenoxyacetic acid facilitated by acetate under methanogenic condition[J]. BIORESOURCE TECHNOLOGY,2017,232:146-151.
APA	Yang, Zhiman,Xu, Xiaohui,Dai, Meng,Wang, Lin,Shi, Xiaoshuang,&Guo, Rongbo.(2017).Rapid degradation of 2,4-dichlorophenoxyacetic acid facilitated by acetate under methanogenic condition.BIORESOURCE TECHNOLOGY,232,146-151.
MLA	Yang, Zhiman,et al."Rapid degradation of 2,4-dichlorophenoxyacetic acid facilitated by acetate under methanogenic condition".BIORESOURCE TECHNOLOGY 232(2017):146-151.