Abstract
Acyclic polyols (erythritol, xylitol, ribitol, D-arabinitol, mannitol, sorbitol and galactitol) are not metabolized bySaccharomyces cerevisiae. They are taken up by a fast non-active process, reaching 402–70% distribution referred to total cell water. The uptake is insensitive to temperature, pH (between 4 and 8), 2,4-dinitrophenol and uranyl ions. Its initial rate rises linearly with concentration from 10-5M to 1m. The process resembles simple diffusion through large pores or the trapping of the whole solution ont he surface. Protoplasts behave like whole cells in this respect. Only erythritol shows a second type of uptake which is inhibitor-insensitive but temperature-dependent.
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Canh, D.S., Horák, J., Kotyk, A. et al. Transport of acyclic polyols inSaccharomyces cerevisiae . Folia Microbiol 20, 320–325 (1975). https://doi.org/10.1007/BF02878113
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DOI: https://doi.org/10.1007/BF02878113