Ferric chloride further simplified the horizontal gene transfer network of antibiotic resistance genes in anaerobic digestion

文献类型： 外文期刊

第一作者： Zhang, Junya

作者： Zhang, Junya;Wei, Yuansong;Zhang, Junya;Zhang, Junya;Wei, Yuansong;Lu, Tiedong;Xin, Yuan

作者机构：

关键词： Ferricchloride; Antibioticresistancegenes; Verticalgenetransfer; Horizontalgenetransfer; Anaerobicdigestion

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：10.753； 五年影响因子：10.237 ）

ISSN： 0048-9697

年卷期： 2022 年 844 卷

页码：

收录情况： SCI

摘要： The role of ferric chloride (FC) on the reduction of antibiotic resistance genes (ARGs) in anaerobic digestion (AD) sys-tem was investigated from the perspective of vertical (VGT) and horizontal gene transfer (HGT) network through the high-throughput qPCR (HT-qPCR). Although FC showed limited impacts on methane production in AD of swine ma-nure, the tetracycline and MLSB resistance genes were specifically reduced at the end, where tetQ of antibiotic target protection and ermF of antibiotic target alteration contributed the most to the reduction. Both VGT and HGT network were divided into three modules, and the complexity of HGT network was largely reduced along with AD, where the HGT connection was reduced from 683 (Module III) to 172 (Module I), and FC addition could further reduce the rel-ative abundance of ARG hosts in Module I. The contribution of VGT and HGT to the changes of ARGs in AD was further deciphered, and although the VGT reflected by the changes of microbial community contributed the most to the dy-namics of ARGs (68.0 %), the HGT contribution could further be reduced by the FC addition. This study provided a new perspective on the fate of ARGs response to the FC addition in the AD system.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序