纳米通过微生物组重塑和环境过转移来缓解生态系统中的抗生素耐药性
Xiaorong Zhang1,2, Qiaobing Luo1,2,3, Zongqiang Gong1,2
1CAS Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, People's Republic of China.
Applied and environmental microbiology
|February 27, 2026
概括
基糖化物稳定纳米颗粒 (AG-SeNPs) 有效地减少了在米土壤,植物圈和米粒中的抗生素耐药性基因 (ARGs). AG-SeNPs重塑微生物群落,抑制ARG传播途径,以实现可持续的农业抗生素耐药性控制.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 纳米技术纳米技术
背景情况:
- 在大米生态系统中的抗生素耐药性基因 (ARG) 威胁着环境和公共健康.
- 在土壤植物系统中ARG的传播对食品安全构成风险.
研究的目的:
- 评估基糖化物稳定纳米颗粒 (AG-SeNPs) 在缓解大米生态系统中ARG丰富性的有效性.
- 阐明AG-SeNPs影响ARG动态和微生物群落的机制.
主要方法:
- 盆栽实验评估AG-SeNPs的叶子应用.
- 在土壤,植物圈和米粒中分析ARG的丰度.
- 功能预测,零模型分析,差异分区和结构方程建模以识别ARG主机和驱动程序.
主要成果:
- 叶子AG-SeNPs的应用显著减少了根球土壤,植物圈和谷物中的ARG.
- 主导的ARG (TetPA,tetGF) 与特定的细菌和蓝菌物种有关.
- AG-SeNPs调节了微生物群落的结构和功能,增强了ABC转运体的活动,抑制了 purin代谢和核糖体功能.
- 叶子中的积直接减少了ARG的丰富性,而土壤特性间接影响了ARG的动态.
结论:
- 通过重塑微生物群落,AG-SeNPs提供了一种可持续的策略,以减轻农业系统中的ARG.
- 该机制涉及对微生物通路和社区重组的间接影响,而不是直接的杀菌作用.
- 这种方法降低了ARG通过大米进入人类食物链的风险.
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