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乳杆菌paracasei的转录组学:在高密度培养条件下代谢模式和细胞反应

Liangzhi Li^1,2, Hetian Zhang^1,2, Delong Meng^1,2

¹School of Minerals Processing and Bioengineering, Central South University, Changsha, China.

Frontiers in bioengineering and biotechnology

|October 30, 2023

概括

在压力下,Lactobacillus paracasei B1有效地代谢营养物质并利用有氧呼吸. 这项研究揭示了其应对环境挑战的机制,支持其在恶臭污染控制中的使用.

科学领域:

环境微生物学环境微生物学
细菌的新陈代谢发生在细菌中.
生物技术中的应用.

背景情况:

乳酸菌 (Lactobacillus paracasei) 具有除臭和细菌静止的特性.
高密度培养条件带来了独特的细胞挑战.
了解细菌反应是优化工业应用的关键.

研究的目的:

在高密度培养下研究Lactobacillus paracasei B1的细胞反应.
使用转录学解读营养代谢和应激反应机制.
描述与生长和环境适应相关的基因功能.

主要方法:

对Lactobacillus paracasei的转录学分析 B1.1.对Lactobacillus paracasei进行分析
在不同的培养条件下对基因表达的比较分析.
代谢途径分析.

主要成果:

优化的条件通过光转移酶系统,糖解和酸盐代谢增强了糖的吸收,促进了快速生长.
在酸性压力下,糖解被抑制,通过有氧呼吸产生能量.
该品种采用了双组件系统和环境监管的定数感应.
缓解氧化应激的机制包括谷氨,氨酸,氨酸,氨酸,基切除修复,以及 purin/pyrimidine代谢.
增强的氨酸合成,氨基酸通路和ABC运输系统对抗了酸性和透性压力.

结论:

乳酸菌B1表现出强大的代谢灵活性和耐压力.
优化的发酵支持高效的生长和生产性质.
已识别的路径为在环境修复中应用L. paracasei B1提供了基础,特别是用于恶臭控制.

关键词:

牛乳杆菌帕拉凯西 (Lactobacillus paracasei) 是一种植物.高密度的文化高密度的文化横向基因转移是指水平基因转移.压力反应应对压力的反应.翻译学翻译学翻译学翻译学

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