Article
K+ uptake by fermenting Escherichia coli cells: pH dependent mode of the TrkA system operating.
Bioscience reports - 1 Aug 2000
Trchounian A, Kobayashi H
Abstract excerpt
Escherichia coli accumulates K+ by means of multiple transport systems, of which TrkA is the most prominent at neutral and alkaline pH while Kup is major at acidic pH. In the present study, K+ uptake was observed with cells grown under fermentative conditions at an initial pH of 9.0 and 7.3 (the medium pH decreased to 8.4 and 6.8, respectively, during the mid-logarithmic growth phase), washed with distilled water...
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