文献类型：期刊文献

英文题名：Effects of two ecological earthworm species on atrazine degradation performance and bacterial community structure in red soil

作者：Lin, Zhong[1];Zhen, Zhen[1];Ren, Lei[1];Yang, Jiewen[1];Luo, Chunling[2];Zhong, Laiyuan[1];Hu, Hanqiao[1];Liang, Yanqiu[1];Li, Yongtao[2];Zhang, Dayi[3,4]

机构：[1]Guangdong Ocean Univ, Coll Agr, Zhanjiang 524088, Peoples R China;[2]South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China;[3]Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China;[4]Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England

年份：2018

卷号：196

起止页码：467

外文期刊名：CHEMOSPHERE

收录：SCI-EXPANDED(收录号：WOS:000425075500053)、、EI(收录号：20180204632191)、Scopus(收录号：2-s2.0-85040126202)、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (41301252, 41671235, 41371316 and U1401234), Natural Science Foundation of Guangdong (2016A030310330 and 2017A030310662), Special Fund for Outstanding Young Teachers of Guangdong Ocean University (HDYQ2015007 and HDYQ2017004).

语种：英文

外文关键词：Atrazine; Earthworm; Vermicomposting; Soil microbial community

外文摘要：Vermicomposting is an effective and environmentally friendly approach for eliminating soil organic contamination. Atrazine is one of the most commonly applied triazinic herbicides and frequently detected in agricultural soils. This study investigated the roles and mechanisms of two earthworm species (epigeic Eisenia foetida and endogeic Amynthas robustus) in microbial degradation of atrazine. Both earthworms accelerated atrazine degradation performance from 39.0% in sterile soils to 94.9%-95.7%, via neutralizing soil pH, consuming soil humus, altering bacterial community structure, enriching indigenous atrazine degraders and excreting the intestinal atrazine-degrading bacteria. Rhodoplanes and Kaistobacter were identified as soil indigenous degraders for atrazine mineralization and stimulated by both earthworm species. A. robustus excreted the intestinal Cupriavidus and Pseudomonas, whereas Flavobacterium was released by E. foetida. This study provides a comprehensive understanding of the distinct effects of two earthworm species on soil microbial community and atrazine degradation, offering technical supports to apply vermicomposting in effective soil bioremediation. (C) 2017 Elsevier Ltd. All rights reserved.