Insights into microbial contamination in multi-type manure-amended soils: The profile of human bacterial pathogens, virulence factor genes and antibiotic resistance genes
文献类型： 外文期刊
作者： Zhu, Lin 1 ; Lian, Yulu 1 ; Lin, Da 1 ; Huang, Dan 1 ; Yao, Yanlai 3 ; Ju, Feng 4 ; Wang, Meizhen 1 ;
作者机构： 1.Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou 310012, Peoples R China
2.Zhejiang Prov Key Lab Solid Waste Treatment & Recy, Hangzhou 310012, Peoples R China
3.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, Hangzhou 310021, Peoples R China
4.Westlake Univ, Sch Engn, Key Lab Coastal Environm & Resources Zhejiang Prov, Hangzhou 310024, Peoples R China
5.Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou, Peoples R China
关键词： Manure; Antibiotic resistance genes; Virulence factor genes; Human bacterial pathogens; Microbiological risk
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：14.224； 五年影响因子：12.984 ）
ISSN： 0304-3894
年卷期： 2022 年 437 卷
页码：
收录情况： SCI
摘要： Concerns regarding biological risk in environment have garnered increasing attention. Manure has been believed to be a significant source of antibiotic resistance genes (ARGs) in agricultural soil. Nevertheless, the profile of microbial contamination including ARGs, virulence factor genes (VFGs) and human bacterial pathogens (HBPs) in different manure-amended soils remain largely unknown. Here, we conducted the systematic metagenomebased study to explore changes in resistome, VFGs and HBPs in soils treated by frequently-used manures. The results revealed that many manure-borne ARGs, VFGs, and HBPs could be spreaded into soils, and their diversity and abundance were significantly different among chemical fertilizer, pig manure, chicken manure, cow dung and silkworm excrement application. A total of 157 potential HBPs accounting about 1.33% of total bacteria were detected. The main ARGs transferred from manures to soil conferred resistance to vancomycin and macrolide-lincosamide-streptogramin. The series analysis revealed positive co-occurrence patterns of ARGsHBPs, VFGs-HBPs and ARGs-VFGs. Microbial contamination were more serious in pig manure and silkworm excrement sample than in the other samples, implying the usage of these two manures increased the risk of HBPs and dissemination of ARGs. This study confirmed the prevalence and discrepancy of resistome, VFGs and HBPs in different manure-amended soils.
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