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J Bacteriol. 1965 June; 89(6): 1448-1452
Copyright © 1965 American Society for Microbiology. All Rights Reserved.

Synthesis of Reserve Materials for Endogenous Metabolism in Streptococcus faecalis

W. W. Forrest and D. J. Walker

Division of Biochemistry and General Nutrition, Commonwealth Scientific and Industrial Research Organization, University of Adelaide, Adelaide, South Australia

ABSTRACT

FORREST, W. W. (University of Adelaide, Adelaide, South Australia), AND D. J. WALKER. Synthesis of reserve materials for endogenous metabolism in Streptococcus faecalis. J. Bacteriol. 89:1448–1452. 1965.—The growth curve of Streptococcus faecalis in batch culture with limited energy source shows an initial portion of exponential growth where the growth yield coefficient Yglucose is 32, followed by linear growth where Yglucose is 21. Endogenous metabolism is correlated with maintenance of glycolytic activity, and there is a marked change in the glycolytic activity of cells harvested under these conditions; however, endogenous metabolism cannot be detected in either case by measurement of the adenosine triphosphate (ATP) pool in the organisms. Cells harvested after growth with excess energy source exhibit endogenous metabolism, which is correlated with a much higher concentration of ATP in the organisms than occurs in the cells grown with limited energy source.

J Bacteriol. 1965 June; 89(6): 1448-1452
Copyright © 1965 American Society for Microbiology. All Rights Reserved.



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