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Microbiol Immunol. 1999;43(7):705-9.

Salt-Sensitive growth of Staphylococcus aureus: stimulation of salt-induced autolysis by multiple environmental factors.

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1
Faculty of Pharmaceutical Science, Hokuriku University, Kanazawa, Ishikawa, Japan.

Abstract

The growth of Staphylococcus aureus 209P became extremely sensitive to a high NaCl concentration following lowered temperature, reduced air-supply, and decreased Ca2+ concentration in the medium. Cells in high-NaCl and low-Ca2+ concentration media either autolyzed or transformed into protoplast-like forms during growth when grown standing below 37 degrees C. The abnormal growth, however, was invariably avoided by preliminary supplementation with polyanetholesulfonate (autolysin inhibitor) in the growth media. These results suggested that the autolytic activity of this organism was precisely controlled by multiple environmental factors such as ionic strength, temperature, air supply, and the concentration of Ca2+.

PMID:
10529112
[Indexed for MEDLINE]
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