Petite mutation in aged and oxidatively stressed ale and lager brewing yeast.

doi:10.1111/j.1472-765X.2008.02360.x

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Article

Petite mutation in aged and oxidatively stressed ale and lager brewing yeast.

Letters in applied microbiology - 1 Jun 2008

Gibson B R, Prescott K A, Smart K A

Abstract excerpt

AIMS: To determine the role of oxidative stress and chronological ageing on the propensity of brewing yeast strains to form respiratory deficient 'petites'. METHODS AND RESULTS: Four industrial yeast strains (two ale and two lager strains) were exposed to oxidative stress in the form of H(2)O(2) (5 mmol l(-1)) for two hours. Cell viability and occurrence of petites were determined by the slide culture and...

Topics

DNA, Mitochondrial
Hydrogen Peroxide
Mutation
Oxidative Stress
Saccharomyces cerevisiae

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PMID: 18422942
DOI: 10.1111/j.1472-765X.2008.02360.x

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