Journal of Food, Agriculture and Environment

Vol 7, Issue 2,2009
Online ISSN: 1459-0263
Print ISSN: 1459-0255

In vitro mineral transformations by the human pathogens Staphylococcus aureus and Candida albicans


Sulaiman Ali Alharbi

Recieved Date: 2009-01-10, Accepted Date: 2009-04-09


The ability of the pathogenic bacterium Staphylococcus aureus and the pathogenic yeast Candida albicans to nitrify, solubilize insoluble phosphate and silicic acid and oxidise elemental sulphur was determined in vitro. Both organisms oxidised ammonium to nitrate, with C. albicans being particularly active; similarly, both organisms oxidised elemental sulphur and solubilized silicic acid. In contrast, while C. albicans solubilized insoluble phosphate, S. aureus was incapable of such solubilizaton; since Staphylococcus pasteuri was shown to be capable of solubilizing phosphate the lack of ability, in this respect seen in S. aureus, is not characteristic of all species of Staphylococcus. The results are discussed in relation to the possible role of human pathogenic microorganisms in mineral cycling in soil.


Pathogenic bacteria, pathogenic yeasts, nitrification, S- oxidation, P-solubilization, silicic acid solubilization, environmental microbiology

Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Environment
Pages: 655-657

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