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SUGAR TRANSPORT IN A PSYCHROPHILIC YEAST

By Vincent P. Cirillo, Peter O. Wilkins and Joseph Anton

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

Topics: Articles
Year: 1963
OAI identifier: oai:pubmedcentral.nih.gov:283638
Provided by: PubMed Central
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