最初的社区组成决定了微生物交叉食相互作用的长期动态,通过调节利基可用性
Jan Dolinšek1,2, Josep Ramoneda1,3, David R Johnson4
1Department of Environmental Microbiology, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600, Dübendorf, Switzerland.
ISME communications
|November 8, 2023
概括
微生物交叉食相互作用可以促进生物多样性. 专家细菌与通用细菌的初始比例决定了这些相互作用是否持续长期,突出了社区组成.
科学领域:
- 微生物生态学 微生物生态学
- 系统生物学 系统生物学
- 进化生物学是进化的生物学.
背景情况:
- 微生物交叉养,即一种物种消耗另一个物种的副产品,可以增强生物多样性.
- 预测这些交叉食相互作用的长期稳定性仍然是一个挑战.
- 了解影响微生物群落持久性的因素对于生态和生物技术应用至关重要.
研究的目的:
- 调查交叉食相互作用持续或消失的条件.
- 确定社区初始组成在交叉养的长期动态中的作用.
- 探索专家对通用主义者的比例对微生物群落稳定性的影响.
主要方法:
- 共同培养具有不同的基质偏好 (酸盐与酸盐减少) 的两个异构菌株Pseudomonas stutzeri.
- 操纵专家和通用菌株 (rS/G) 的初始比例.
- 随着时间的推移,监测共文化动态和社区组成.
主要成果:
- 具有高初始rS/G比率的共同种植稳定并持续存在.
- 具有较低初始rS/G比率的共同种植最初稳定,但最终被一般主义菌株主导.
- 最初的社区组成决定了环境条件,选择压力和获得的表型,影响了长期的动态.
结论:
- 最初的社区组成是交叉食相互作用持久性的关键决定因素.
- 专家对通用主义者的比例显著影响微生物群落的长期稳定性和结果.
- 这些发现对于理解微生物社区发展和设计稳定的合成社区至关重要.
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