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减少性土壤消毒对土壤中潜在的病原体和抗生素耐药基因的影响

Huijuan Duan¹, Yue Yin¹, Yifei Wang²

¹State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.

Journal of environmental sciences (China)

|September 21, 2024

概括

使用有机材料进行降低性土壤消毒 (RSD),降低了土壤病原体和抗生素耐药性基因 (ARG). 这种土壤修复技术在农业环境中控制高风险的ARG方面表现有前途.

科学领域:

环境微生物学环境微生物学
土壤科学土壤科学
农业科学农业科学

背景情况:

降低性土壤消毒 (RSD) 是一个用于温室的土壤修复方法.
RSD对土壤中抗生素耐药性基因 (ARG) 的影响尚不清楚.

研究的目的:

调查不同有机物质在RSD期间对土壤微生物群落,潜在的细菌病原体和ARG概况的影响.
评估RSD作为减轻土壤中ARG扩散的战略的潜力.

主要方法:

在土壤中使用蒸机的谷物,土豆皮,花生葡萄树和花生葡萄树与木炭.
分析了细菌群体的组成,潜在病原体的丰富性和ARG概况.
土壤的物理化学特性与ARG配置文件相关.

主要成果:

RSD治疗显著改变了细菌群体结构,并减少了潜在的细菌病原体.
高风险ARG的相对丰度下降了10.7%-30.6%,其中AAC(3)_Via,dfrA1,ErmB,lnuB和aadA的显着减少.
作为ARG的主要宿主 - - Actinobacteria被RSD抑制,土壤特性,如总和碳影响了ARG配置文件.

结论:

RSD有效地抑制了土壤中的致病细菌.
RSD,特别是与多样化的有机材料,可以减少高风险的ARGs的丰富性,为土壤整治和管理抗生素耐药性的潜在策略提供.

关键词:

抗生素耐药性基因 (ARG) 是指抗生素耐药性的基因.细菌群落是细菌群落的组成部分.农田的土壤农田的土壤有潜在的病原体.降低性土壤消毒 (RSD) 方法

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