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质量检测调节了Vibrio harveyi中甲乙醇的产生

Tiantian Zhou¹, Jinyan Wang¹, Jonathan D Todd²

¹College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.

|January 23, 2024

概括

海洋振动生物产生的甲乙醇 (MeSH) 通过定数感应 (QS) 系统进行调节. 在*Vibrio harveyi*中,这种QS控制的MeSH产生可能会防止有害的氨酸积累.

科学领域:

微生物学微生物学
环境科学环境科学
生物化学生物化学

背景情况:

海洋振动生物是生物地球化学循环中的关键参与者.
挥发性有机硫化合物如甲乙醇 (MeSH) 和二甲基硫化物 (DMS) 影响大气化学.
海洋vibrios中的MeSH和DMS的新陈代谢和调节在很大程度上仍然没有特征.

研究的目的:

在 *Vibrio harveyi* BB120.20 中调查MeSH和DMS的产生.
为了确定定数感应 (QS) 系统是否调节了这种海洋细菌的MeSH和DMS代谢.

主要方法:

分别从 metionin 和 DMSP 生产的 MeSH 和 DMS 的量化.
使用*V. harveyi* BB120及其QS突变物对QS调节的分析.
使用定数灭酶MomL和外源自导AI-2验证QS作用.

主要成果:

*V. harveyi* BB120 证明了从氨酸中产生显著的 MeSH 生产和从DMSP中产生较小的 DMS 生产.
发现MeSH的产生受到HAI-1,AI-2,CAI-1 QS通路以及*luxO*基因的调节.
从DMSP裂变产生的DMS产量没有受到QS系统的显著影响.
通过QS调节MeSH的产生可能有助于减轻潜在的有毒 metionin水平.

结论:

定数感应系统在*Vibrio harveyi*中调节MeSH生产方面发挥着至关重要的作用.
在vibrios中MeSH生产途径广泛存在,并可能与 metionin排毒有关.
这项研究强调了QS和MeSH代谢对海洋生物生态作用的重要性.

关键词:

在 DMS 中使用 DMS.这就是为什么MeSH MeSH.在 MegLL 中.这种病毒是Vibrio harveyi.议员数量检测是指对议员数量进行检测.

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