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J Bacteriol. 1965 October; 90(4): 1013-1018
Copyright © 1965 American Society for Microbiology. All Rights Reserved.

Adenosine Triphosphate Pool During the Growth Cycle in Streptococcus faecalis

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

ABSTRACT

FORREST, W. W. (University of Adelaide, Adelaide, South Australia). Adenosine triphosphate pool during the growth cycle in Streptococcus faecalis. J. Bacteriol. 90:1013–1018. 1965.—The adenosine triphosphate (ATP) pool has been studied throughout the growth cycle of Streptococcus faecalis. Normally, the pool is quantitatively related to the concentration of organisms and the growth rate, but deviations from these relationships can occur without affecting the growth rate of the organisms. A critical concentration of ATP seems necessary for exponential growth, and, at lower levels, only linear growth can occur. If no growth can take place, catabolism of added energy source gives rise to a large increase in the pool level. The pool level represents the balance between the demands of the organisms for energy and the supply of energy derived from catabolism of the substrate.