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Responses of soil microbial communities to concentration gradients of antibiotic residues in typical greenhouse vegetable soils

文献类型： 外文期刊

作者： Zhao, Lixia 1 ; Pan, Zheng 1 ; Sun, Baoli 3 ; Sun, Yang 1 ; Weng, Liping 1 ; Li, Xiaojing 1 ; Ye, Huike 1 ; Ye, Jianzhi 2 ; Pan, Xiaowei 2 ; Zhou, Bin 1 ; Li, Yongtao 5 ;

作者机构： 1.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, MARA Tianjin Key Lab Agroenvironm & Agroprod Safe, Key Lab Original Agroenvironm Pollut Prevent & Co, Tianjin 300191, Peoples R China

2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Minist Agr & Rural Affairs, Lab Agr Prod Proc Qual & Safety Risk Evaluat, Zhanjiang 524001, Guandong, Peoples R China

3.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China

4.Wageningen Univ, Dept Soil Qual, Postbus 47, NL-6700 AA Wageningen, Netherlands

5.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guandong, Peoples R China

6.Jiangxi Univ Sci & Echnol, Coll Resource & Environm Engn, Ganzhou 341000, Jiangxi, Peoples R China

关键词： Antibiotics Metabolites; Antibiotic resistance genes; Soil microbial community; Ecological risk

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： 2023 年 855 卷

页码：

收录情况： SCI

摘要： To explore the responses of soil microbial communities to concentration gradients of antibiotic residues in soil, 32 soil samples were collected from a typical greenhouse vegetable production base in Northern China in 2019. The total concentrations of 26 antibiotic residues in these soil samples was 83.24-4237.93 mu g center dot kg(-1), of which metabolites of tetracyclines were 23.34-1798.80 mu g center dot kg(-1). The total concentrations in 32 samples were clustered into three levels (L: <100 mu g center dot kg(-1), M: 100-300 mu g center dot kg(-1), H: >300 mu g center dot kg(-1)) to elucidate the impacts of antibiotic residues on the diversity, structure, composition, function and antibiotic resistome of soil microbial community. Results showed that higher concentration of antibiotic residues in soil was prone to decrease the diversity and shift the structure and composition of soil microbial community. Antibiotic resistome occurred in soils with antibiotic residues exceeding 300 mu g center dot kg(-1). Interactions among soil bacteria followed the order of H > L > M, consistent with the relative abundances of mobile genetic elements. Bacteroidetes and Firmicutes were the top attributors impacting the profile of antibiotics in soil.

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