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Light-Controlled Fermentations for Microbial Chemical and Protein Production

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Published on: March 22, 2022

Lights on and action! Controlling microbial gene expression by light.

Thomas Drepper¹, Ulrich Krauss, Sonja Meyer zu Berstenhorst

¹Institute of Molecular Enzyme Technology, Heinrich-Heine-University Düsseldorf, Forschungszentrum Jülich, Stetternicher Forst, 52426, Jülich, Germany. t.drepper@fz-juelich.de

Applied Microbiology and Biotechnology

|February 22, 2011

Summary

Researchers are developing new ways to control microbial gene expression using light. This allows for non-invasive, precise control over cellular functions in bacteria and yeast for biotechnology applications.

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Area of Science:

Functional genomics
Systems biology
Biotechnology

Background:

Light offers unique physical properties for non-invasive, spatiotemporal control of microbial processes.
Controlling gene expression in microbes is crucial for various biological and biotechnological applications.

Purpose of the Study:

To review recent strategies for creating photo-sensitive expression systems in bacteria and yeast.
To discuss the properties of naturally occurring and artificial photoswitches for light-controlled gene expression.

Main Methods:

Review of literature on light-mediated gene expression control systems.
Presentation of photoswitches comprising light-sensitive input domains (from photoreceptors) and regulatory output domains.

Main Results:

Development of novel photo-sensitive expression systems in bacteria and yeast.
Characterization of various photoswitch designs, including natural and artificial variants.

Conclusions:

Light-mediated control systems provide powerful tools for precise manipulation of microbial functions.
These systems have significant potential in functional genomics, systems biology, and biotechnology.