Effect of temperature on the growth rates of halotolerant and halophilic bacteria isolated from Antarctic saline lakes

摘要

The effect of temperature on the growth rates ofHalomonas subglaciescolaand aHalobacteriumsp., halotolerant and halophilic bacteria isolated from Antarctic saline lakes, was predicted accurately by models which propose a linear relationship between temperature and the square root of the reciprocal of the growth rate. The cardinal temperatures of the strains examined were in general 5–10°C lower than those of taxonomic counterparts isolated from temperate and tropical environments. Temperature dependence data for strains of theHalobacteriumsp. and annual temperature profiles of Deep Lake allowed estimation of the in situ potential for grow