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污水污泥肥影响微生物群落结构及其在农业土壤中的抗性

Liliana Serwecińska¹, Arnoldo Font-Nájera², Dominik Strapagiel³

¹European Regional Centre for Ecohydrology of the Polish Academy of Sciences, Tylna 3, 90‑364, Lodz, Poland. l.serwecinska@erce.unesco.lodz.pl.

Scientific reports

|September 9, 2024

概括

污水污泥的应用改变了土壤微生物群落,增加了抗生素耐药性基因 (ARG). 这项研究强调了污泥施肥对农业土壤抗体的影响,这对环境安全有影响.

科学领域:

环境微生物学环境微生物学
土壤科学土壤科学
公共卫生公共卫生

背景情况:

全球污水污泥产量正在上升,这带来了处置挑战.
污水污泥的农业使用是常见的管理实践.
污水污泥含有抗生素耐药性基因 (ARG) 和不同的微生物群落.

研究的目的:

为了评估土壤微生物群落的变化和污水污泥应用后的抗体.
为了比较两种不同使用的农业土壤中的微生物和ARG概况,这些土壤被污泥施肥.
了解常规污泥施肥对土壤生态系统的影响.

主要方法:

使用了高通量猎枪元基因组学.
在受精和对照土壤中比较了微生物群落和ARG.
网络分析被用来评估细菌分类学概况的变化.

主要成果:

污水污泥的应用导致了细菌群体的显著质量和数量转变,有利于蛋白质细菌和螺旋菌.
在经过修改的土壤中,寡质型细菌与副质型细菌的比例下降.
受精的土壤显示了ARG的多样性和丰度增加,特别是那些对临床重要抗生素产生耐药性的抗生素.

结论:

污水污泥施肥显著改变了土壤微生物结构,提高了土壤的抗性.
尽管重金属含量低,但污泥应用增加了ARGs的流行率.
需要进一步的研究来管理与污泥传播的ARGs相关的环境风险.

关键词:

抗生素耐药性基因是抗生素耐药性的基因.环境威胁环境威胁土壤细菌社区的土壤细菌社区土壤肥料化土壤肥料化

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