植物菌 (Lactiplantibacillus plantarum) 使用生态相关的外源性子进行细胞外电子转移
Eric T Stevens1, Wannes Van Beeck1, Benjamin Blackburn2
1Department of Food Science and Technology, University of California-Davis, Davis, California, USA.
mBio
|November 20, 2023
概括
乳植物菌 (Lactiplantibacillus plantarum) 利用环境中的来获取能量,从而影响无氧微生物群落. 昆也促进了生长,但也可能引起压力,揭示了发酵中的关键交叉食相互作用.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 环境科学 环境科学
背景情况:
- 昆对呼吸道微生物至关重要,但它们在发酵代谢中的作用尚不清楚.
- 这种知识差距限制了对消化道和发酵食品等无氧环境的理解.
研究的目的:
- 为了研究外源性子在Lactiplantibacillus plantarum的新陈代谢中的作用.
- 探索金对微生物相互作用和无氧息地生长的影响.
主要方法:
- 使用了 Lactiplantibacillus plantarum 作为一种发酵乳酸细菌的模型.
- 研究子用于细胞外电子转移 (EET) 的利用及其代谢后果.
- 分析了生产细菌对L. plantarum生长和酸化的影响.
主要成果:
- L. plantarum使用环境子作为电子穿车,用于涉及ETE的混合代谢.
- 类激素刺激新陈代谢,但当电子受体缺少时,可以诱导氧化应激.
- 联合培养的生产乳酸细菌通过依赖机制加速L. plantarum的生长和酸化.
结论:
- 证明子利用和交叉养是无氧微生物的重要生态因素.
- 突出了素在支持新陈代谢和可能引起压力的双重作用.
- 提供了关于发酵和消化生态系统中的微生物社区动态的见解.
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