Characteristics of a facultatively psychrophilic Acinetobacter species isolated from river sediment

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Abstract
A facultatively psychrophilic bacterium isolated from river sediment was identified as an Acinetobacter species, similar to those previously characterized as A. lwoffi. The strain was extremely lipolytic and hemolytic. Some action on crude oil was also observed. The organism was able to utilize a wide variety of carbon and energy sources when tested at both 20 and 30 °C.A comparison is made with the previously proposed type strain of A. lwoffi. The bacteria had a Gram-negative cell wall containing an electron-dense intermediate layer. Cell division occurred with the formation of a septum and slight constriction.