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J Microbiol Methods. 2003 Jun;53(3):309-12.

Leakage of K+ ions from Staphylococcus aureus in response to tea tree oil.

Author information

1
Department of Microbiology, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.

Abstract

The leakage of K(+) ions from Staphylococcus aureus in response to tea tree oil (TTO) was investigated with an ion-selective electrode. The amount of leaked K(+) ions and the rate of leakage of K(+) ions induced by TTO were dependent on the concentration of TTO. Measurements of initial rates required less time than measurements of total amounts and provided an index of the interaction between TTO and the cell membrane. Thus, the initial rate of leakage might be a more useful measure of the antibacterial activity of TTO than the total amount.

PMID:
12689708
DOI:
10.1016/s0167-7012(02)00248-8
[Indexed for MEDLINE]

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