复杂细菌殖民地形态的生物物理代谢建模
Ilija Dukovski1,2,3, Lauren Golden4,5, Jing Zhang1
1Bioinformatics Program, Faculty of Computing and Data Sciences, Boston University, Boston, MA, USA.
bioRxiv : the preprint server for biology
|November 6, 2024
概括
这项研究整合了微生物代谢和生物质传播,以实现现实的大肠杆菌殖民地模拟. 新模型准确地预测了殖民地形态和遗传多样性,推进了微生物生态系统建模.
科学领域:
- 微生物学 微生物学
- 计算生物学 计算生物学
- 系统生物学 系统生物学
背景情况:
- 微生物殖民地生长受到生物质传播和营养扩散等物理过程的控制,以及对环境的代谢反应.
- 现有的模型往往简化或省略了新陈代谢与物理生长动态的整合.
研究的目的:
- 开发一个综合模型,将动态新陈代谢与生物质的传播和人口的波动相结合,以模拟微生物殖民地.
- 使用微生物生态系统在时间和空间 (COMETS) 计算框架,提供细致的E. coli殖民地模拟.
主要方法:
- 代谢的组合动态流量平衡建模与集体生物质传播.
- 将人口的波动纳入模拟框架.
- 利用COMETS框架对微生物生态系统进行综合建模.
主要成果:
- 生成现实的大肠杆菌殖民地形态,与实验观测一致.
- 标志着平滑和的殖民地结构之间的过渡动态.
- 观察并解释了模拟殖民地的遗传多样性衰退.
- 确定了导致生物质积聚在具有新起源的"代谢环"中的条件.
结论:
- 综合模型为微生物生态系统的预测建模提供了重大进展.
- 模拟提供了有关新陈代谢,物理和殖民地形成中的种群动态之间的相互作用的见解.
- 这些发现有助于更深入地了解微生物社区结构和演变.
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