微生物之间的空间协调游戏中的相隔和共存
Guanlin Li1, Gabi Steinbach2, Peter Yunker3
1Interdisciplinary Graduate Program in Quantitative Biosciences, Georgia Institute of Technology, Atlanta, GA, USA; School of Physics, Georgia Institute of Technology, Atlanta, GA, USA.
bioRxiv : the preprint server for biology
|September 18, 2025
概括
微生物的相互作用,从对抗到合作,推动了不同的空间领域的出现. 这种由游戏理论支配的相位分离,促进了微生物的共存和社区的多样性.
科学领域:
- 微生物生态学 微生物生态学
- 理论生态学理论生态学
- 统计物理 统计物理
背景情况:
- 微生物群体表现出由局部细胞对细胞相互作用驱动的复杂的人口结构.
- 将微观相互作用机制与宏观共存动态联系起来仍然是一个挑战,因为它们存在很大的差异.
- 了解多种相互作用类型如何影响微生物多样性和空间组织至关重要.
研究的目的:
- 研究微生物相互作用如何通过新兴的空间领域促进共存,从敌对到合作.
- 探索微生物相互作用的游戏理论基础及其对人口动态和结构的影响.
- 识别控制微生物在空间显式环境中的共存的通用机制.
主要方法:
- 对一系列随机协调游戏进行分析,以建模细胞间相互作用.
- 调查由双井形状相互作用潜力支配的人口动态.
- 一个部分微分方程 (PDE) 的推导相当于空间随机游戏.
主要成果:
- 协调游戏表现出双井相互作用潜力,诱导空间设置中的相位分离,促进共存.
- 对称的协调游戏显示了与"模型A"粗化相一致的普遍相隔缩放,这种粗化在*Vibrio cholerae*中观察到.
- 在空间协调游戏中,PDE模型证实了双井潜力和相分离的普遍性.
结论:
- 通过协调游戏模拟的局部微生物相互作用可以导致空间相位分离并促进共存.
- 新兴的空间领域和相位分离提供了维持微生物多样性的通用机制.
- 这一框架将微观交互规则与宏观群体结构联系在一起,进步了我们对微生物社区组装的理解.
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