SUGAR TRANSPORT IN A PSYCHROPHILIC YEAST

Author:

Cirillo Vincent P.1,Wilkins Peter O.1,Anton Joseph1

Affiliation:

1. Departments of Biochemistry and Microbiology, Seton Hall College of Medicine and Dentistry, Jersey City, New Jersey

Abstract

Cirillo, Vincent P. (Seton Hall College of Medicine and Dentistry, Jersey City, N.J.), Peter O. Wilkins, and Joseph Anton . Sugar transport in a psychrophilic yeast. J. Bacteriol. 86: 1259–1264. 1963.—The mechanism and temperature characteristic for sugar transport were compared in a psychrophilic and a mesophilic yeast. Between 0 and 10 C, glucose utilization, glucosamine accumulation, and sorbose transport showed a very high temperature characteristic in the mesophile (μ = 50,000) compared with the psychrophile (μ = 12,000). Hexokinase activity in cell-free extracts from both yeasts, however, showed the same low temperature characteristic (μ = 15,000). Although the temperature characteristic for sugar transport was markedly different for the mesophile and the psychrophile, sugar transport in both yeasts met the criteria for carrier-mediated facilitated diffusion.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference19 articles.

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2. Observations on the physiology of psychrophilism in a yeast;BAXTER R. M.;Can. J. Microbiol.,1962

3. Some general properties of a psychrophilic pseudomonad: The effect of temperature on some of these properties and the utilization of glucose by this organism and Pseudomonas aeruginosa;BROWN A. D.;J. Gen. Microbiol.,1957

4. Uptake of metabolizable sugars by Saccharomyces cerevisiae;BURGER M.;Folia Microbiol. (Prague),1961

5. The mechanism of sugar transport into the yeast cell. Trans. N.Y;CIRILLO V. P.;Acad. Sci. Ser. II,1961

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