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Appl Environ Microbiol. 1970 July; 20(1): 156-159
Copyright © 1970 American Society for Microbiology. All Rights Reserved.

Unusual Fermentative, Gram-Negative Bacilli Isolated from Clinical Specimens

II. Characterization of Aeromonas Species

Department of Laboratories, Hospital for Joint Diseases and Medical Center, New York, New York 10035
Microbiology Department, Mt. Sinai Hospital and Medical School, New York, New York 10029
Clinical Laboratories, State University Hospital, Downstate Medical Center, Brooklyn, New York 11203

ABSTRACT

Morphological and physiological characterization of 12 Aeromonas strains isolated from clinical specimens demonstrated several important diagnostic features. These included polar arrangement of the flagella; production of oxidase, deoxyribonuclease, amylase, gelatinase, and lipase; lack of ornithine decarboxylase; and sensitivity to polymyxin. Awareness of these features should result in more frequent differentiation of aeromonads from the physiologically similar members of the genus Plesiomonas and the late- or non-lactose-fermenting species of Enterobacteriaceae.