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Updated: Mar 28, 2026
10:08
Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
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Advances in mechanisms and modifications for rendering yeast thermotolerance
Liman Gao1, Yueqin Liu1, Hun Sun1
1School of Life Science, Beijing Institute of Technology, 5th Building, Zhongguancun South Street, Beijing 100081, China.
Journal of Bioscience and Bioengineering
|December 20, 2015
Summary
This review explores thermotolerant Saccharomyces cerevisiae for bioethanol production. Enhancing yeast heat resistance through genetic strategies and thermophile mechanisms improves ethanol yield and reduces costs.
Area of Science:
- Biotechnology
- Microbiology
- Biochemical Engineering
Background:
- Thermotolerant Saccharomyces cerevisiae offers advantages for integrated bioethanol production systems.
- Current limitations in yeast thermotolerance hinder efficiency and increase costs in non-grain bioethanol fermentation.
Purpose of the Study:
- To review yeast heat-resistant mechanisms and strategies for improving thermotolerance.
- To discuss novel methods for engineering enhanced thermotolerance in Saccharomyces cerevisiae.
Main Methods:
- Overview of six key yeast thermotolerance mechanisms: gene expression, heat shock proteins, trehalose, ATPase, ubiquitin-proteasome pathway, and antioxidant defenses.
- Discussion of random and rational strategies for yeast thermotolerance improvement.
- Exploration of engineering thermotolerance using heat-resistant mechanisms from thermophiles.
Main Results:
- Engineered Saccharomyces cerevisiae exhibits superior thermotolerance through the integration of thermophile heat-resistant components.
- Novel heat-resistant devices have been designed and constructed for enhanced microbial robustness.
Conclusions:
- Improving yeast thermotolerance is crucial for efficient and cost-effective bioethanol production.
- Engineering yeast with thermophile mechanisms offers a promising avenue for developing robust industrial microbial strains.
Keywords:
Heat-resistant devicesHeat-resistant modificationNon-gain fuel bioethanolSaccharomyces cerevisiaeThermophilesThermotolerant mechanismMore Related Videos
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