Metabolomics analysis of salt tolerance of Zygosaccharomyces rouxii

What is it about?

Metabolomics was used to reveal the changes of intracellular metabolites of food yeast Zygosaccharomyces rouxii under salt stress. Guided by the metabolomics results, the effect of 7 exogenous fatty acids (C12:0, 5 C14:0, C16:0, C18:0, C16:1, C18:1, and C18:2) addition on the salt tolerance of Z. rouxii was analyzed. Physiological results suggested 4 exogenous fatty acids (C12:0, C16:0, C16:1, and C18:1) can increase the biomass yield, regulate the distribution of fatty acids in the cell membrane, increase the degree of unsaturation, improve the membrane fluidity, maintain cell integrity, morphology, and surface roughness, to enhance salt tolerance.

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Why is it important?

These results are applicable to reveal the metabolic mechanisms of Z. rouxii under salt stress, and screen potential protective agents to improve stress resistance by adding exogenous fatty acids.