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Metagenomic binning analyses of pig manure composting reveal potential antibiotic-degrading bacteria and their risk of antibiotic resistance genes

文献类型： 外文期刊

作者： Zhang, Jing 1 ; Ding, Changfeng 1 ; Zhou, Zhigao 1 ; Zhang, Taolin 1 ; Wang, Xingxiang 1 ; Yue, Zhengfu 1 ;

作者机构： 1.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China

2.Chinese Acad Sci, Ecol Expt Stn Red Soil, Yingtan 335211, Peoples R China

3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

4.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Key Lab Low carbon Green Agr Trop reg China, Minist Agr & Rural Affairs,Hainan Key Lab Trop Eco, Haikou 571101, Peoples R China

5.Hainan Danzhou Trop Agroecosyst Natl Observat & Re, Danzhou 571737, Peoples R China

6.Chinese Acad Sci, Inst Soil Sci, 71 East Beijing Rd, Nanjing 210008, Peoples R China

关键词： Alkyl -aryl transferase; Arg_ranker; Metagenome-assembled genomes

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：11.4； 五年影响因子：10.6 ）

ISSN： 0960-8524

年卷期： 2023 年 371 卷

页码：

收录情况： SCI

摘要： Antibiotic-degrading bacteria are commonly used to treat antibiotic contamination, but the antibiotic resistance genes (ARGs) they carry are often overlooked. This study used metagenomic assembly and binning analyses to explore potential antibiotic-degrading bacteria and their ARGs during pig manure composting. The result showed that 35 metagenome-assembled genomes (MAGs) mainly containing alkyl-aryl transferase and decarboxylase genes involved in the removal of antibiotics. Multidrug (12 4), beta-lactam (67), macrolide-lincosamide-streptogramin (MLS) (64), and tetracycline (43) were the central ARG types detected in the 35 MAGs. Furthermore, the risk of ARGs was evaluated using the arg_ranker framework, and 19 MAGs were found to contain intermediate-high-risk ARGs with human-associated-enrichment, gene transferability, and host pathogenicity. Bin 34 of the genus of Geofilum had the highest ARG risk. Bin 6, Bin 11 and Bin 14 of the genus of Limnochorda, Chelatococcus and Niabella, had a lower ARG risk and were considered as potential antibiotic-degrading bacteria.

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