Oversynthesis of riboflavin by yeast Pichia guilliermondii in response to oxidative stress.


The effect of oxidative stress on riboflavin (vitamin B2) biosynthesis and iron accumulation in flavinogenic yeast P. guilliermondii was investigated. Treatment of P. guilliermondii cells with superoxidgenerating agent methylviologen leads to elevated production of malondialdyhyd (MDA) which reflects the overall cellular oxidation state. Increased iron… (More)


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