title: Significance of Na+ in the fish pathogen, Vibrio anguillarum, under energy depleted condition.
abstract: Vibrio anguillarum kills various kinds of fish over salinities ranging from seawater to freshwater. In this study, we investigated the role of Na(+) in V. anguillarum, especially under energy-depleted conditions such as in natural seawater. V. angustum S14, which is a typical marine vibrio, was used for comparison. V. anguillarum only required Na(+) for starvation-survival, but in contrast, V. angustum S14 always required Na(+) for both growth and starvation-survival. In marine vibrios, Na(+) is used in the Na(+)-dependent respiratory chain that produces the sodium motive force (SMF) across the cell membrane. It has been considered that marine vibrios always need a SMF produced by Na(+), however in the case of V. anguillarum, the SMF is not required for growth, but becomes more important for starvation-survival.
authors.affiliation: Department of Fisheries, Kinki University, Nara 631-8505, Japan.
authors.forename: Erina
authors.initials: E
authors.lastname: Fujiwara-Nagata
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Eguchi
mesh_terms: D000818:Animals; D018533:Biomass; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone / Q000494:pharmacology; D002462:Cell Membrane / Q000378:metabolism; D015169:Colony Count, Microbial; D003470:Culture Media / Q000737:chemistry; D004579:Electron Transport; D004734:Energy Metabolism; D005393:Fish Diseases / Q000382:microbiology; D005399:Fishes / Q000382:microbiology; D017136:Ion Transport; D008564:Membrane Potentials / Q000187:drug effects; D012965:Sodium Chloride / Q000378:metabolism*; D000254:Sodium-Potassium-Exchanging ATPase / Q000502:physiology; D014733:Vibrio / Q000187:drug effects / Q000254:growth & development* / Q000302:isolation & purification / Q000378:metabolism*; D014871:Water Microbiology
chemical_list: D003470:Culture Media; D012965:Sodium Chloride; D002258:Carbonyl Cyanide m-Chlorophenyl Hydrazone; D000254:Sodium-Potassium-Exchanging ATPase