化剂释放的代谢物促进了海洋中的代谢相互作用
Barbara Bayer1,2, Shuting Liu2,3, Katherine Louie4
1Division of Microbial Ecology, Centre for Microbiology and Environmental Systems Science, University of Vienna, Djerassiplatz 1, 1030 Vienna, Austria.
The ISME journal
|September 8, 2024
概括
深海中的微生物相互作用涉及营养交换. 化微生物释放有机化合物,包括B族维生素,对异质群落和海洋碳循环至关重要.
科学领域:
- 海洋微生物学 海洋微生物学
- 生物地质化学循环 生物地质化学循环
- 微生物生态学 微生物生态学
背景情况:
- 化学自otroph - 异质otroph 相互作用对于深海碳循环至关重要.
- 化物,海洋丰富的化学自营物,对代谢物释放和转移机制了解甚少.
- 了解这些转移是海洋微生物生态学的关键.
研究的目的:
- 描述关键化微生物的外部和内膜代谢.
- 调查代谢物释放和适用于异质群体的可用性.
- 阐明化剂释放化合物在海洋微生物相互作用中的作用.
主要方法:
- 对氧化氨的Nitrosopumilus adriaticus和氧化的Nitrospina gracilis进行了代谢分析.
- 对与异质细菌的基和共同培养系统进行比较分析.
- 表甲基组和转录组分析,以确定动态代谢物生产和消费.
主要成果:
- 化剂释放可变的有机化合物,其中N. adriaticus更喜欢像甘氨酸这样的氨基酸.
- 内膜体组成没有预测外代谢物释放,这表明有活跃的分泌机制.
- 共同培养显示了化物和异质动物之间动态的B维生素 (B2,B5,B7前体) 生产和消费.
结论:
- 维生素B及其前体在控制海洋化物和异质动物之间的代谢相互作用方面具有重要意义.
- 化剂积极释放代谢物,影响深海中必需有机化合物的可用性.
- 这些发现凸显了微生物代谢在深海生物地球化学过程中的关键作用.
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