光强度通过植物微生物分子代谢网络和微生物社区组装驱动植物土壤系统中的抗生素耐药性
Ping Chen1, Peng Li1, Dong Zhang2
1School of Environmental Science & Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Journal of hazardous materials
|February 7, 2026
概括
光强度在农业植物土壤系统中显著影响抗生素耐药性基因 (ARG). 强光可以通过改变植物微生物相互作用来抑制ARG,从而减少耐药细菌带来的健康风险.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 农业中的抗生素耐药性基因 (ARG) 对人类健康构成重大威胁.
- 光强度的影响,一个关键的农学因素,在植物-土壤系统中对ARG动态的影响不明.
- 这种知识差距阻碍了对ARG传播风险的有效评估.
研究的目的:
- 研究不同光强度对植物-土壤系统中ARG配置的影响.
- 阐明光强度影响ARG的基本机制.
- 为制定减轻ARG在农业中的传播战略提供基础.
主要方法:
- 对植物-土壤系统的低,中,高光强度的系统性调查.
- 高通量定量PCR (qPCR) 分析以分析ARG.
- 关于植物微生物相互作用,代谢途径和信号网络的机制研究.
主要成果:
- 光强度显著改变了树根球和叶子内层中的ARG配置文件.
- 高光强度通过调节植物激素水平,活性氧物种 (ROS),定数感应 (QS),双组分系统 (TCS) 和依赖ATP的新陈代谢来抑制ARG的扩散.
- 在强光下观察到叶子内层中抗生素耐药细菌和病原体的抑制.
结论:
- 光强度在农业植物土壤生态系统中调节抗生素耐药性的过程中起着至关重要的作用.
- 针对植物微生物相互作用的光调节策略可以有效地抑制ARG传播.
- 这项研究为可持续农业实践提供了理论基础,以减少与ARG相关的公共卫生风险.
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