Автор |
Gilman, S. |
Автор |
Saunders, Venetia A. |
Дата выпуска |
1986 |
dc.description |
Accumulation of gentamicin by gentamicin-susceptible Staphylococcus aureus was examined by using the ionophorous antibiotic, valinomycin and the proton-translocating ATPase inhibitor N,N′-dicyclohexylcarbodiimide. The effects of these inhibitors on the transmembrane electrical potential (Δψ) were determined by measuring the equilibrium distribution of the tetraphenylphosphonium ion. The results indicate a direct correlation between Δψ and the extent of gentamicin uptake. However, under conditions where a significant Δψ existed across the plasma membrane, uptake of gentamicin was negligible. A threshold Δψ may thus be required to initiate gentamicin uptake. The proposed threshold Δψ appears to vary depending upon the external concentration of gentamicin. |
Формат |
application.pdf |
Издатель |
Oxford University Press |
Копирайт |
© 1986 The British Society for Antimicrobial Chemotherapy |
Тема |
Original Articles |
Название |
Accumulation of gentamicin by Staphylococcus aureus: the role of the transmembrane electrical potential |
Тип |
research-article |
Electronic ISSN |
1460-2091 |
Print ISSN |
0305-7453 |
Журнал |
Journal of Antimicrobial Chemotherapy |
Том |
17 |
Первая страница |
37 |
Последняя страница |
44 |
Аффилиация |
Department of Biology, Liverpool PolytechnicByrom Street, Liverpool L3 3AF, England |
Выпуск |
1 |