关键词: Lactobacillus NADH oxidase Streptococcus electron transport chain lactic acid bacteria oxygen respiration

来  源:   DOI:10.12938/bmfh.2024-002   PDF(Pubmed)

Abstract:
Lactic acid bacteria (LAB) are a type of bacteria that convert carbohydrates into lactate through fermentation metabolism. While LAB mainly acquire energy through this anaerobic process, they also have oxygen-consuming systems, one of which is flavoprotein oxidase and the other is exogenous heme- or heme- and quinone-dependent respiratory metabolism. Over the past two decades, research has contributed to the understanding of the roles of these oxidase machineries, confirming their suspected roles and uncovering novel functions. This review presents the roles of these oxidase machineries, which are anticipated to be critical for the future applications of LAB in industry and comprehending the virulence of pathogenic streptococci.
摘要:
乳酸菌(LAB)是一种通过发酵代谢将碳水化合物转化为乳酸的细菌。虽然LAB主要通过这种厌氧过程获得能量,它们也有耗氧系统,其中一种是黄素蛋白氧化酶,另一种是外源性血红素或血红素和醌依赖性呼吸代谢。在过去的二十年里,研究有助于理解这些氧化酶机制的作用,确认他们的可疑角色并发现新的功能。这篇综述介绍了这些氧化酶机制的作用,预计这对于LAB在工业中的未来应用以及理解致病性链球菌的毒力至关重要。
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