Sucrose uptake is driven by the Na+ electrochemical potential in the marine bacterium Vibrio alginolyticus.
Na+ was found to be essential for the accumulation of sucrose by Vibrio alginolyticus. Sucrose uptake was completely inhibited by the addition of proton conductor at neutral pH, but not at alkaline pH, where the primary electrogenic Na+ pump generates the Na+ electrochemical gradient. We therefore conclude that sucrose transport is driven by the electrochemical potential of Na+ in this organism.
D001692:Biological Transport / Q000187:drug effects; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone / Q000494:pharmacology; D007700:Kinetics; D010101:Oxygen Consumption; D011190:Potassium Cyanide / Q000494:pharmacology; D012964:Sodium / Q000378:metabolism / Q000494:pharmacology*; D013395:Sucrose / Q000378:metabolism*; D014733:Vibrio / Q000187:drug effects / Q000378:metabolism*
D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone; D013395:Sucrose; D012964:Sodium; D011190:Potassium Cyanide