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. 1973 Sep;26(3):364–367. doi: 10.1128/am.26.3.364-367.1973

Phosphatase Activity Among Candida Species and Other Yeasts Isolated from Clinical Material

Rodney F Smith 1, Dianna Blasi 1, Sandra L Dayton 1
PMCID: PMC379791  PMID: 4584579

Abstract

A group of 277 yeasts isolated from burned children and 14 reference strains were tested for phosphatase activity by using phenolphthalein phosphate substrates. Phosphatase activity was widely distributed among various species and strains representing seven genera. Candida albicans, which was the most common yeast isolated from clinical material, was notably absent in producing the enzyme, whereas Candida tropicalis was the most consistent, strong, and rapidly active phosphatase-producing organism. The characteristic enzyme activity of a selected isolate of C. tropicalis was demonstrated in the presence of concentrations of inorganic phosphate which inhibited enzyme activity of other species. The greater enzyme activity of C. tropicalis was not related to more rapid or greater cell growth or decrease in the pH of culture media. Extracellular constitutive heat-labile acid phosphatase was found in broth filtrates of C. tropicalis, C. krusei, and a strain of Staphylococcus aureus.

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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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