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在Per-和多基基物质 (PFAS) 应激下对土壤微生物群体的代谢和微生物分析

Enhui Wu¹, Kun Wang¹, Zhengzheng Liu²

¹Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China.

Environmental science & technology

|December 12, 2023

概括

和多醇基物质 (PFAS) 破坏土壤微生物. 这项研究揭示了PFAS如何影响土壤新陈代谢和微生物群落,为生态破坏提供了洞察力.

科学领域:

环境科学环境科学
微生物学微生物学
环境化学环境化学

背景情况:

和多基基物质 (PFAS) 是持久的环境污染物.
众所周知,PFAS会对生物体健康产生负面影响,并破坏微生物社区的结构和功能.
了解土壤微生物群落对PFAS压力的代谢反应至关重要.

研究的目的:

调查PFAS污染对土壤微生物群落结构和功能在代谢水平的影响.
为了确定受PFAS影响的特定生物化学中间体和代谢途径.
探索PFAS,土壤代谢物和微生物群落之间的相互作用.

主要方法:

集成的基于UPLC-HRMS的代谢学与16S rRNA和ITS amplicon测序.
从邻近聚合物生产设施的地点收集土壤样本.
分析了代谢物概况,微生物社区结构和共发生网络.

主要成果:

观察到土壤代谢物概况和微生物社区结构的显著变化与设施的接近有关.
在代谢物概况和微生物多样性之间发现了强烈的相关性.
参与脂质代谢,氨基酸代谢和二次代谢物生物合成的关键代谢物被确定在代谢物-PFAS共发生网络中.

结论:

PFAS污染显著改变了土壤代谢和微生物组.
土壤代谢学是评估化学污染物的生态影响的宝贵工具,如PFAS.
这项研究为PFAS破坏土壤微生物生态系统的基础生物化学机制提供了新的见解.

关键词:

同时发生的网络网络.代谢学代谢学代谢学微生物的新陈代谢.多种组合的多种组合.这就是PFOA的PFOA.

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