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A compositional shift in the soil microbiome induced by tetracycline, sulfamonomethoxine and ciprofloxacin entering a plant-soil system

文献类型： 外文期刊

作者： Lin, Hui 1 ; Jin, Danfeng 2 ; Freitag, Thomas E. 3 ; Sun, Wanchun 1 ; Yu, Qiaogang 1 ; Fu, Jianrong 1 ; Ma, Junwei 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resource & Soil Fertilizers, Hangzhou 310021, Zhejiang, Peoples R China

2.Jiangxi Acad Sci, Inst Microbiol, Nanchang 330096, Peoples R China

3.Craigiebuckler, James Hutton Inst, Aberdeen, Scotland

关键词： Antibiotics;Soil microbial community;Bacterial phylogeny;Antibiotic resistance

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

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收录情况： SCI

摘要： Antibiotics entering the soil likely disturb the complex regulatory network of the soil microbiome, which is closely associated with soil quality and ecological function. This study investigated the effects of tetracycline (TC), sulfamonomethoxine (SMM), ciprofloxacin (CIP) and their combination (AM) on the bacterial community in a soil-microbe-plant system and identified the main bacterial responders. Antibiotic effects on the soil microbiome depended on antibiotic type and exposure time. TC resulted in an acute but more rapidly declining effect on soil microbiome while CIP and SMM led to a delayed antibiotic effect. The soil exposed to AM presented a highly similar bacterial structure to that exposed to TC rather than to SMM and CIP. TC, SMM and CIP had their own predominantly impacted taxonomic groups that include both resistance and sensitive bacteria. The antibiotic sensitive responders predominantly distributed within the phylum Proteobacteria. The potential bacteria resistant to each antibiotic exhibited phyla preference to some extent, particularly those resistant to TC. CIP and SMM resistance in soil was increased with exposure time while TC resistance gave the opposite result. Overall, the work extended the understanding of antibiotic effects on soil microbiome after introduced into the soil during greenhouse vegetable cultivation. (C) 2016 Elsevier Ltd. All rights reserved.

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