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. 1966 Sep;92(3):707–713. doi: 10.1128/jb.92.3.707-713.1966

Pantothenate and Coenzyme A in Bacterial Growth1

G Toennies a, D N Das a, F Feng a
PMCID: PMC276312  PMID: 4958776

Abstract

Toennies, G. (Temple University School of Medicine, Philadelphia, Pa.), D. N. Das, and F. Feng. Pantothenate and coenzyme A in bacterial growth. J. Bacteriol. 92:707–713. 1966.—The effect of environmental pantothenate levels on the growth of Streptococcus faecalis 9790 was studied in terms of growth rate, depletion phenomena, cellular coenzyme A (CoA) content, and differential rates of wall and membrane synthesis. Low concentrations of pantothenate yielded normal exponential growth curves up to peak turbidities which are a function of pantothenate concentration. Attainment of these peaks was followed by lysis. Under such conditions, bacterial CoA increased initially in proportion with cell substance, but attained a peak level much earlier than cell substance, and then gradually decreased down to vanishing amounts. With higher pantothenate concentrations, cellular CoA levels increased to a maximum, and, under these conditions, the CoA content remained constant during exponential growth. Four-fifths of the pantothenate requirement of growing cells was eliminated by environmental oleate and palmitate. When CoA disappeared during growth on low pantothenate levels, cell wall synthesis seemed to continue at nearly normal rates, but membrane synthesis was severely curtailed. The data suggest that in fermentative organisms pantothenate action might be confined to wall and membrane synthesis, that these two processes differ in their quantitative dependence on pantothenate, and that pantothenate might occur in the form of acyl carrier protein as well as CoA.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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