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农业土壤中微生物污染的特征:从公共卫生角度来看

Xiaodi Li¹, Lin Zhu¹, Si-Yu Zhang²

¹International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development & Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.

The Science of the total environment

|December 9, 2023

概括

水下土壤比干旱土壤带来更大的健康风险,原因是人体细菌病原体 (HBPs) 和抗生素耐药性基因 (ARGs) 的水平更高. 这些污染物在水下环境中更加相互连接,增加了生态和人类健康的担忧.

科学领域:

环境微生物学环境微生物学
公共卫生公共卫生
基因组学就是基因组学.

背景情况:

土壤含有微生物污染物,如抗生素耐药性基因 (ARG) 和人类细菌病原体 (HBPs),构成公共卫生风险.
之前对不同息地的土壤安全风险的研究并不全面.

研究的目的:

在干旱和水下土壤中描述人类细菌病原体 (HBPs),抗生素耐药性基因 (ARGs) 和毒性因子基因 (VFGs).
为了比较与不同类型的土壤相关的生态和人类健康风险.

主要方法:

基因组测序被用来分析来自干旱 (蔬菜,玉米,大豆) 和水下 (大米,养殖) 环境的土壤样本.
网络分析和Procustes分析被用来调查HBPs,ARGs,VFGs和移动遗传元素 (MGE) 之间的关联.

主要成果:

与干旱土壤相比,浸水土壤表现出更高的HBPs丰度.
水下土壤微生物组含有高风险ARG (例如bacA,sul1,aada) 的水平明显高于干旱土壤.
鉴于它们与ARG,VFG和MGEs的关联,11个HBPs被确定为高风险,在淹没的土壤中观察到更强的联系.

结论:

浸水土壤比干旱土壤具有更大的生态和人类健康风险.
在水下环境中,HBP和ARG的密切关联凸显了有针对性的风险管理策略的需要.

关键词:

农业土壤农业土壤抗生素耐药性基因是抗生素耐药性的基因.人类细菌病原体的病原体.病毒性因子基因病毒性因子基因.

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