The unsuitability of high pH media for the selection of marine Vibrio species

A comprehensive review of Vibrio (Listonella) anguillarum: ecology, pathology and prevention

“…Binary fission of the V. anguillarum cell is pH sensitive being most efficient at neutral pH 7, inhibited entirely over pH 9 and significantly disrupted at pH 6 or below (Gilmour et al . ; Larsen ). The bacterium is halophilic and thrives within NaCl concentrations between 1% and 2%, but it is understood that temperature serves as a more detrimental factor towards V. anguillarum growth than does salinity as V. anguillarum is known to remain viable when relocated to freshwater environments (Rucker ; Hacking & Budd ; Rødsæther et al .…”

“…The pathogen grows best between 30 and 34°C with a maximum growth temperature of 38.5°C (Gu erin-Faubl ee et al 1995), and the growth rate of V. anguillarum is known to increase with temperature (Groberg et al 1983). Binary fission of the V. anguillarum cell is pH sensitive being most efficient at neutral pH 7, inhibited entirely over pH 9 and significantly disrupted at pH 6 or below (Gilmour et al 1976;Larsen 1984). The bacterium is halophilic and thrives within NaCl concentrations between 1% and 2%, but it is understood that temperature serves as a more detrimental factor towards V. anguillarum growth than does salinity as V. anguillarum is known to remain viable when relocated to freshwater environments (Rucker 1959;Hacking & Budd 1971;Rødsaether et al 1977;Larsen 1984;Laurencin & Germon 1987); however, V. anguillarum motility is enhanced with increased salinity (Kao et al 2009).…”