Salt desideratum of Vibrio costicolus, an obligate halophilic bacterium.

Information is meager concering the influence of salts on the metabolic processe of halophiles. In fact, reports of the work of Robinson et al. (1952) are the only recent studies in this field. Robinson (1952) showed that there was an optimum concentration of sodium chloride for maximum activity of lactic acid dehydrogenase. While studying the effect of salt on Micrococcwu halodenifns, Robinson and Gibbons (1952) found that different optimal concentrations of salt were required for maximum nitrogen production and oxygen uptake. This paper presents data on the effects of various concentrations of salts and nonelectrolytes on the oxidation of glucose by Vibrio costicolu.