PROTECTIVE FUNCTIONS OF EXOPOLYSACCHARIDES PRODUCED BY AN ACINETOBACTER SP

The effect of exopolysaccharides (EPS) on the response of exponential and stationary cells of an Acinetobacter sp, to different unfavorable ambient factors was studied. EPS synthesized by Acinetobacter sp. unde r optimum growth conditions were found to protect the bacterium from e xtreme pH values, elevated temperature, drying, freezing, biocides, an d detergents. Exponential cells showed a higher tolerance to some of t he effecters studied. The relationship between the physiological state of Acinetobacter sp. cells and the protective abilities of EPS is dis cussed.