The role of potassium transport in the generation of a pH gradient in Escherichia coli.

@article{Kroll1981TheRO,
  title={The role of potassium transport in the generation of a pH gradient in Escherichia coli.},
  author={Rohan G. Kroll and Ian R. Booth},
  journal={The Biochemical journal},
  year={1981},
  volume={198 3},
  pages={691-8}
}
The role of K+ transport in the generation of a pH gradient in Escherichia coli has been investigated. In K+-depleted cells, net K+ uptake dissipated delta psi (membrane potential) and led to an increase in delta pH (pH gradient). The magnitude of the delta pH formed bore a simple relationship to the net K+ uptake and was substantially independent of the respiratory rate. In K+-replete cells, generation of a pH gradient was again K+-dependent, although no net uptake of this cation occurred. The… CONTINUE READING