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在Eubacterium callanderi KIST61212中在无氧条件下功能性的一氧化碳耐受性光记者系统的开发

Tantri Ardiwinata¹, Byeongchan Kang², Ji-Yeon Kim²

¹Department of Environment and Energy Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea.

Bioresource technology

|December 2, 2025

概括

研究人员为Eubacterium callanderi KIST612开发了一种新的光记者系统,克服了自光和CO的挑战. FAST1标签可以在无氧条件下进行敏感的实时监测.

科学领域:

微生物学微生物学
生物技术是生物技术.
合成生物学合成生物学

背景情况:

欧细菌callanderi KIST612是一种适用于工业应用的乙原体.
监测无氧细菌的挑战包括自身光和对一氧化碳 (CO) 的敏感性.
开发强大的报告系统对于代谢工程和流程优化至关重要.

研究的目的:

开发和优化一种光传递系统,用于Eubacterium callanderi KIST612.12.
为了解决报告者基因表达中的自光和CO敏感性问题.
在严格的无氧条件下验证系统的性能.

主要方法:

在E. callanderi KIST612.12中自光的表征.
选和选择合适的光蛋白,专注于光激活和吸收转移标签 (FAST).
在无氧条件下使用葡萄糖和CO的FAST1表达E.callanderi菌株的构建和培养.
使用CO传感装置验证报告系统.

主要成果:

鉴于其光谱特性和动力学,FAST1-HMBR被确定为最佳的光标签.
与对照人群相比,FAST1表达菌株的光强度显著更高 (葡萄糖4.55倍,CO4.54倍).
报告员系统在光强度和CO部分压力之间显示出强烈的线性相关性 (R ²,0.97).
该系统在无氧CO环境中的监测中被证明是敏感和有效的.

结论:

一个使用FAST1的功能性和优化的光记者系统已成功为E. callanderi KIST612开发.
该系统有效地克服了自发光和CO干扰,使得可靠的监测.
该工具增强了在工业相关的无氧过程中对乙原体的研究和工程.

关键词:

亚塞托基因的产物是一种基因.无氧报告系统的无氧报告系统.自动光是一种自发光.一氧化碳的一氧化碳.欧细菌卡兰德里 KIST61212

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