Ktr-Mediated Potassium Transport, a Major Pathway for Potassium Uptake, Is Coupled to a Proton Gradient Across the Membrane in Synechocystis sp. PCC 6803
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<I>Synechocystis</I> 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 <I>Escherichia coli</I>. In <I>Synechocystis</I>, Ktr-mediated potassium transport is dependent on the proton gradient across the membrane.
- Agricultural and Biological Chemistry
Agricultural and Biological Chemistry 70(1), 273-275, 2006-01-23
Japan Society for Bioscience, Biotechnology, and Agrochemistry