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空间驱动着可转移等离子体的维持和传播

Wenzhi Xue¹, Juken Hong¹, Runmeng Zhao²

¹Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.

Molecular systems biology

|April 29, 2025

概括

空间结构显著影响抗生素耐药性. 降低景观缩加速了等离子体的传播和维护,这对于控制微生物群落中抗菌素耐药性至关重要.

科学领域:

微生物学微生物学
进化生物学进化生物学
计算生物学计算生物学

背景情况:

抗生素耐药性是一个主要的全球健康威胁,由移动遗传元素 (MGE) 驱动,如可转移的等离子体.
大多数微生物群落存在于空间结构化的环境中,与简化的混合模型不同.
空间异质性对等离子体动态的影响仍然不太清楚.

研究的目的:

为在空间结构化的微生物社区 (元社区) 中传播等离子体开发一个理论框架.
研究景观特征,特别是空间,如何影响等离子体的维护和传播.
通过实验验证理论预测,并探索将环境与MGE丰富性联系起来的基因组证据.

主要方法:

开发了塑体分布在具有不同空间景观的超级社区的理论模型.
在随机生成的景观上分析基因流动力学,以确定等离子体生存和分散的关键驱动因素.
使用大肠杆菌元社区和结合性等离子体进行实验验证.
检查了一大批 prokaryotic 基因组数据集,以将环境与 MGE 和抗生素耐药性基因含量相关联.

主要成果:

空间被确定为控制等离子体生存和传播的关键因素.
降低景观缩加速了等离子体范围的扩张,并使得等离子体的维护成为可能,否则预计将被丢失.
在大肠杆菌中的实验结果证实了关于效应的理论预测.
来自低环境的 Prokaryotes 呈现出更多的 MGEs 和抗生素耐药性基因.

结论:

空间景观结构,特别是空间,在抗生素耐药性基因传播的动态中起着至关重要的作用.
操纵景观提供了管理和控制抗微生物耐药性的潜在策略.
了解空间生态对于预测和减轻微生物群体中抗生素耐药性的传播至关重要.

关键词:

抗生素耐药性抗生素耐药性生物膜是一种生物膜.横向基因转移是指水平基因转移.这是一种等离子体.空间 Entropy 是一个空间.

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