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相关概念视频

Bacterial Signaling01:30

Bacterial Signaling

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Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
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相关实验视频

Updated: May 22, 2025

A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
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A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling

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在Halomonas TD01中开发基于定量检测的协作动态控制系统

Yi-Na Lin1, Yu-Xi Li1, Ye Zheng2,3,4

  • 1School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 17, 2025
PubMed
概括
此摘要是机器生成的。

为微生物细胞工厂开发了一种基于定数感应 (QS) 的新型动态控制系统. 这种无诱导剂的系统显示出强大的扩展潜力,可用于增强的代谢工程应用.

关键词:
哈洛蒙纳斯病毒是什么?细胞与细胞之间的通信.动态控制的动态控制高细胞密度的诱导诱导.代谢工程是代谢工程.议员数量检测是指对议员数量进行检测.

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Automated Microbial Cultivation and Adaptive Evolution using Microbial Microdroplet Culture System MMC
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Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
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Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

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A Hydroponic Co-cultivation System for Simultaneous and Systematic Analysis of Plant/Microbe Molecular Interactions and Signaling
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科学领域:

  • 合成生物学 合成生物学
  • 代谢工程是代谢工程.
  • 微生物生物技术 微生物生物技术

背景情况:

  • 对基因表达的动态控制对于微生物细胞工厂工程至关重要.
  • 目前的工具在扩展强度方面面临挑战,特别是在非模型生物体中.

研究的目的:

  • 为微生物细胞工厂构建一个强大的,可扩展的友好的动态控制系统.
  • 开发一种无诱导体的系统,以精确控制基因表达的时间和水平.

主要方法:

  • 在Halomonas TD中使用直角定数感应 (QS) 模块设计了两种细胞类型.
  • 使用基于QS的协作系统与不同的主办方 (Pcin和Plux).
  • 集成的CRISPR干扰 (CRISPRi) 用于动态抑制和MMP1RNA聚合酶用于放大.

主要成果:

  • 在实验室规模的食批次中实现了超过15倍的动态基因表达控制.
  • 在高细胞密度发酵下,被证明高达80%的抑制效率和30倍的放大.
  • 产生了500毫克L-1蓝和4.7克L-1超氧化物脱酶 (SOD),表现优于IPTG诱导.

结论:

  • 开发了一个基于QS的标准化,无诱导器的动态控制系统.
  • 该系统在代谢工程中的规模发酵中显示出有希望的稳定性.
  • 突出了工业微生物精确基因操纵的新范式.