Autoconditioning factor relieves ethanol-induced growth inhibition of Saccharomyces cerevisiae.

نویسندگان

  • H M Walker-Caprioglio
  • L W Parks
چکیده

Viable Saccharomyces cerevisiae suspended in medium containing growth-inhibiting concentrations of ethanol produce a metabolite that relieves growth inhibition. This autoconditioning of the medium by yeasts is due to the formation of small amounts (0.01%, vol/vol) of acetaldehyde. The effect is duplicated precisely in fresh medium by the addition of acetaldehyde. Acetaldehyde does not increase the yield of or accelerate ethanol production by the organism. Ethanol-induced modifications of membrane order in the plasma membranes, as measured by steady-state fluorescence anisotropy of 1,6-diphenyl-1,3,5-hexatriene, were not resolved by exogenously added acetaldehyde.

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عنوان ژورنال:
  • Applied and environmental microbiology

دوره 53 1  شماره 

صفحات  -

تاریخ انتشار 1987