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Review
. 2023 Oct 9;11(10):2522.
doi: 10.3390/microorganisms11102522.

Cellular Stress Impact on Yeast Activity in Biotechnological Processes-A Short Overview

Madalina Postaru  1 , Alexandra Tucaliuc  2 , Dan Cascaval  2 , Anca-Irina Galaction  1
Affiliations
Review

Cellular Stress Impact on Yeast Activity in Biotechnological Processes-A Short Overview

Madalina Postaru et al. Microorganisms. .

Abstract

The importance of Saccharomyces cerevisiae yeast cells is known worldwide, as they are the most used microorganisms in biotechnology for bioethanol and biofuel production. Also, they are analyzed and studied for their similar internal biochemical processes to human cells, for a better understanding of cell aging and response to cell stressors. The special ability of S. cerevisiae cells to develop in both aerobic and anaerobic conditions makes this microorganism a viable model to study the transformations and the way in which cellular metabolism is directed to face the stress conditions due to environmental changes. Thus, this review will emphasize the effects of oxidative, ethanol, and osmotic stress and also the physiological and genetic response of stress mitigation in yeast cells.

Keywords: Saccharomyces cerevisiae; cell response; ethanol stress; osmotic stress; oxidative stress; yeast fermentation.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Types of stresses to which the yeast cell can be exposed during the fermentation process and its way of responding to stressful stimuli [33].
Figure 2
Figure 2
Reactive oxygen species production—antioxidant defense system regulating ROS levels to maintain physiological homeostasis [32].
Figure 3
Figure 3
Molecular mechanisms of osmotic, ethanol, and oxidative stress response in yeast [62,70].
See this image and copyright information in PMC

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