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Microbial catabolism of lindane in distinct layers of acidic paddy soils combinedly affected by different water managements and bioremediation strategies

文献类型：期刊论文

作者Chuang Shaochuang3; Wang Baozhan3; Chen Kai3; Jia Weibin3; Qiao Wenjing3; Ling Wanting2; Tang Xiangyu1; Jiang Jiandong3
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2020
卷号746页码:DOI: 10.1038/s41597-020-0529-0
ISSN号0048-9697
关键词Bacterial consortium High-throughput sequencing Metagenomics Dynamic change Network analysis
DOI10.1038/s41597-020-0529-0
产权排序3
文献子类Article
英文摘要The environmental fate of the recalcitrant organic chlorine insecticide lindane and its removal from contaminated soils are still of great concern. However, the key factors influencing microbial removal of lindane from paddy soils with intermittent flooding and draining remain largely unknown. Here, we conducted laboratory experiments to investigated lindane biodegradation in different layers of typical acidic paddy soils under different water managements and bioremediation strategies, together with the changes of functional bacterial consortium, key genes and metabolic pathways. It was found that under flooded conditions, lindane spiking significantly stimulated the growth of some bacterial genera with potential anaerobic catabolic functions in both top- (0-20 cm depth) and subsoil (20-40 cm depth), leading to the shortest half-life of lindane with 7.6-9.0 d in the topsoil. In contrary, lindane spiking dramatically stimulated the growth of bacterial members with aerobic catabolic functions under drained conditions, exhibiting half-lives of lindane with 85-131 d and 18-23 d in the top- and subsoil, respectively. Overall, biostimulation coupled with flooding management would be the better combination for increased lindane bioremediation. Functional genes involved in lindane degradation and retrieved from metagenomic data further supported the anaerobic and aerobic biodegradation of lindane under flooded and drained conditions, respectively. Moreover, the integrated network analysis suggested water management and organic matter were the primary factors shaped the assembly of functional bacteria in lindane degradation, among which Clostridium and Rhodanobacter were the key anaerobic and aerobic functional genera, respectively. Taken together, our study provides a comprehensive understanding of lindane biodegradation in distinct layers of acidic paddy soils that were combinedly affected by different water managements and bioremediation strategies. (C) 2020 Elsevier B.V. All rights reserved.
电子版国际标准刊号2052-4463
语种英语
WOS记录号WOS:000546946600006
源URL[http://ir.imde.ac.cn/handle/131551/46861]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Jiang Jiandong
作者单位1.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
2.Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China;
3.Department of Microbiology, Key Lab of Environmental Microbiology for Agriculture, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
推荐引用方式
GB/T 7714		 Chuang Shaochuang,Wang Baozhan,Chen Kai,et al. Microbial catabolism of lindane in distinct layers of acidic paddy soils combinedly affected by different water managements and bioremediation strategies[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,746:DOI: 10.1038/s41597-020-0529-0.
APA Chuang Shaochuang.,Wang Baozhan.,Chen Kai.,Jia Weibin.,Qiao Wenjing.,...&Jiang Jiandong.(2020).Microbial catabolism of lindane in distinct layers of acidic paddy soils combinedly affected by different water managements and bioremediation strategies.SCIENCE OF THE TOTAL ENVIRONMENT,746,DOI: 10.1038/s41597-020-0529-0.
MLA Chuang Shaochuang,et al."Microbial catabolism of lindane in distinct layers of acidic paddy soils combinedly affected by different water managements and bioremediation strategies".SCIENCE OF THE TOTAL ENVIRONMENT 746(2020):DOI: 10.1038/s41597-020-0529-0.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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