Abstract
WHETHER calcium is an element essential for bacteria is uncertain. Gorini and Audrain1 concluded that Bacillus megatherium needed calcium only when proteolytic enzymes were used to obtain amino-acids; the results of Shooter and Wyatt2 with Staphylococcus pyogenes were explained similarly. Diplococcus pneumoniae also requires calcium3. There is no evidence that calcium is required intracellularly although Haines4 showed that it was required for the formation but not for the activation of bacterial proteases. We have attempted to show the uptake of calcium by a Staphylococcus by use of the radioactive isotope calcium-47.
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References
Gorini, L., and Audrain, L., Biochim. Biophys. Acta, 6, 477 (1951).
Shooter, R. A., and Wyatt, H. V., Brit. J. Exp. Path., 36, 341 (1955).
Rochford, E. J., and Mandle, R. J., J. Bact., 66, 554 (1953).
Haines, R. B., Biochem. J., 27, 466 (1933).
Mitchell, P. J., J. Gen. Microbiol., 9, 273 (1953).
Conway, E. J., and Downey, M., Biochem. J., 47, 347 (1950).
Wyatt, H. V., Ph.D. thesis, University of London (1957).
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WYATT, H., REED, G. & SMITH, A. Calcium Requirement for Growth of Staphylococcus pyogenes. Nature 195, 100–101 (1962). https://doi.org/10.1038/195100a0
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DOI: https://doi.org/10.1038/195100a0
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