Reference: Penninckx M (2000) A short review on the role of glutathione in the response of yeasts to nutritional, environmental, and oxidative stresses. Enzyme Microb Technol 26(9-10):737-742

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Abstract

Glutathione (L-gamma-Glutamyl-L-Cysteinylglycine) appears as the major nonprotein thiol compound in yeasts. Recent advances have shown that glutathione (GSH) seems to be involved in the response of yeasts to different nutritional and oxidative stresses. When the yeast Saccharomyces cerevisiae is starved for sulfur or nitrogen nutrients, GSH may be mobilized to ensure cellular maintenance. Glutathione S-transferases may be involved in the detoxification of electrophilic xenobiotics. Vacuolar transport of metal derivatives of GSH ensure resistance to metal stress. Growth of methylotrophic yeasts on methanol results in the formation of an excess formaldehyde that is detoxified by a GSH-dependent formaldehyde dehydrogenase. Growth of yeasts on glycerol results in the accumulation of methylglyoxal detoxified by the glyoxalase pathway. Glutathione per se can react with oxidative agents or is involved in the oxidative stress response through glutathione peroxidase.

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Penninckx M
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