Summary: In the presence of K+, Na+ enhanced respiration and activated cellular motility and transport of K+, amino acids and phosphate in Pseudomonas stutzeri. Inorganic phosphate taken up was rapidly esterified to nucleoside triphosphates and diphosphates. Respiration and phosphate transport showed cooperative responses to Na+ which increased with temperature. Respiration was more sensitive to polymyxin B in the presence of Na+. Dinitrophenol and carbonyl cyanide p-trifluoromethoxy-phenylhydrazone stimulated respiration when either Na+ or K+ was absent, but not in the presence of both cations. Therefore, Na+ is essential for the cytoplasmic membrane of P. stutzeri to perform energy-linked functions coupled to respiration.
KodamaT., TaniguchiS.1976; Sodium-dependent growth and respiration of a nonhalophilic bacterium, Pseudomonas stutzeri. Journal of General Microbiology 96:17–24
KodamaT., ShimadaK., MoriT.1969; Studies on anaerobic biphasic growth of a denitrifying bacterium, Pseudomonas stutzeri. Plant and Cell Physiology 10:855–865
LarsenS.H., AdlerJ., GargusJ.J., HoggR.W.1974; Chemochemical coupling without ATP: the source of energy for motility and chemotaxis in bacteria. Proceedings of the National Academy of Sciences of the United States of America 71:1239–1243
PalleroniN.J., DoudoroffM., StanierR.Y., SalánesR.E., MandelM.1970; Taxonomy of the aerobic pseudomonads: the properties of the Pseudomonas stutzeri group. Journal of General Microbiology 60:215–231