Effects of ethanol and other alkanols on the general amino acid permease of Saccharomyces cerevisiae

Among the mechanisms that underly the inhibition by alkanols of growth and fermentation in Saccharomyces cerevisiae, the noncompetitive exponential inhibition of nutrient transport across the plasma membrane may play a major role. So far this type of inhibition was shown to affect the transport systems of S. cerevisiae for glucose,l maltose,* and a m m ~n i u m . ~