Osmotic upshift transiently inhibits uptake via ABC transporters in gram-negative bacteria.
نویسندگان
چکیده
ATP-binding cassette transporters from several rhizobia and Salmonella enterica serovar Typhimurium, but not secondarily coupled systems, were inhibited by high concentrations (100 to 500 mM) of various osmolytes, an effect reversed by the removal of the osmolyte. ABC systems were also inactivated in isolated pea bacteroids, probably due to the obligatory use of high-osmolarity isolation media. Measurement of nutrient cycling in isolated pea bacteroids is impeded by this effect.
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عنوان ژورنال:
- Journal of bacteriology
دوره 188 14 شماره
صفحات -
تاریخ انتشار 2006