Biochemical Test of Aeromonas hydrophila

Biochemical Test of Aeromonas hydrophila

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Some of the characteristics are as follows:

Basic Characteristics Properties (Aeromonas hydrophila)
Capsule -ve
Catalase +ve
Citrate +ve
Flagella +ve
Gas +ve
Gelatin Hydrolysis +ve
Gram Staining Gram-negative
H2S +ve
Hemolysis +ve
Indole +ve
Maximum Growth Temperature 41°C
Motility +ve
Nitrate Reduction +ve
OF (Oxidative-Fermentative) Fermentative
Oxidase +ve
Oxygen Requirement Facultative Anaerobe
Shape Rod
Spore -ve
String Test -ve
TSIA (Triple Sugar Iron Agar) Alkali/Acid
Urease -ve
VP (Voges Proskauer) +ve

Fermentation of

Arabinose Variable
Arabitol -ve
DNase +ve
Dulcitol -ve
Erythritol -ve
Glucose +ve
Gluconate Variable
Lactose Variable
Mannitol +ve
Mucate -ve
Rhamnose -ve
Sorbitol -ve
Sucrose +ve
Trehalose +ve
Xylose -ve

Enzymatic Reactions

Arbutin +ve
Arginine Dehydrolase +ve
Elastase +ve
Esculin Hydrolysis +ve
Lysine Decarboxylase +ve
Ornithine Decarboxylase -ve
Pectinase +ve
Phenylalanine Deaminase -ve
Pyrazinamidase +ve


  1. Garrity, George Brenner, Don J., Krieg, Noel R., Staley, James R. (2005). Bergey’s Manual of Systematic Bacteriology. Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria.
  2. Sharon L. Abbott, Wendy K. W. Cheung, J. Michael Janda. The Genus Aeromonas: Biochemical Characteristics, Atypical Reactions, and Phenotypic Identification Schemes Journal of Clinical Microbiology Jun 2003, 41 (6) 2348-2357; DOI: 10.1128/JCM.41.6.2348-2357.2003
  3. Chuang, H. C., Ho, Y. H., Lay, C. J., Wang, L. S., Tsai, Y. S., & Tsai, C. C. (2011). Different clinical characteristics among Aeromonas hydrophila, Aeromonas veronii biovar sobria and Aeromonas caviae monomicrobial bacteremia. Journal of Korean medical science, 26(11), 1415-20.
  7. Al-shalah. L. AM, The study characters of Aeromonas hydrophila on some media. Mesop. environ. j., 2017, Special Issue A.;121-129 .

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