Engineering microorganisms for enhanced tolerance to toxic end-products and intermediates

Area of Science:

• Biotechnology and Synthetic Biology
• Microbial Engineering
• Sustainable Chemical Production

Background:

• Microbial manufacturing offers a sustainable alternative for chemical production.
• High-value chemical toxicity to microbial cell factories limits production efficiency.
• The cell envelope and intracellular components are key targets for enhancing microbial tolerance.

Purpose of the Study:

• To systematically review synthetic biology strategies for enhancing microbial tolerance to toxic chemicals.
• To provide insights for the industrial translation of microbial production of toxic compounds.
• To highlight advances in both intracellular and extracellular engineering approaches.

Main Methods:

• Review of existing literature on microbial tolerance engineering.
• Analysis of strategies targeting cell envelope composition and regulation.
• Examination of intracellular engineering approaches (transcription factors, repair pathways).
• Assessment of extracellular engineering techniques (biofilm formation, intercellular interactions).

Main Results:

• Synthetic biology offers diverse strategies to overcome chemical toxicity in microbial production.
• Cell envelope engineering, including lipids and proteins, is crucial for stress response.
• Intracellular and extracellular engineering approaches show significant promise for enhancing tolerance.
• Biofilm formation and intercellular interactions are emerging areas for microbial tolerance.

Conclusions:

• Engineering microbial cell factories is essential for producing toxic chemicals sustainably.
• A combination of cell envelope, intracellular, and extracellular strategies can maximize microbial tolerance.
• Further research and development are needed to facilitate industrial-scale microbial production of toxic compounds.