Ktr-mediated potassium transport, a major pathway for potassium uptake, is coupled to a proton gradient across the membrane in Synechocystis sp. PCC 6803

Nobuyuki Matsuda, Nobuyuki Uozumi

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Synechocystis sp. PCC 6803 contains a Ktr system and a putative ATP-dependent Kdp system for potassium uptake. We report here that the Kdp system plays only a minor role in potassium uptake under salt and non-stress conditions, unlike the role it plays in Escherichia coli. In Synechocystis, Ktr-mediated potassium transport is dependent on the proton gradient across the membrane.

Original languageEnglish
Pages (from-to)273-275
Number of pages3
JournalBioscience, Biotechnology and Biochemistry
Volume70
Issue number1
DOIs
Publication statusPublished - 2006 Feb 2
Externally publishedYes

Keywords

  • Osmoregulation
  • Potassium
  • Proton motive force
  • Transporter

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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