Open AccessSignificance of Na + in the fish pathogen, Vibrio anguillarum , under energy depleted condition
Author(s) -
FujiwaraNagata Erina,
Eguchi Mitsuru
Publication year - 2004
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2004.tb09528.x
Subject(s) - vibrio anguillarum , seawater , vibrio , biology , pathogen , microbiology and biotechnology , fish <actinopterygii> , sodium , bacteria , fishery , chemistry , ecology , genetics , organic chemistry
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.