Aeromonas aquariorum
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Aeromonadales, Family Aeromonadaceae, Genus Aeromonas,  
Aeromonas aquariorum
Martinez-Murcia et al. 2008.
According to Martinez-Murcia et al. 2009, strains of
Aeromonas hydrophila subsp.
dhakensis
belong to the species Aeromonas aquariorum.
Gram-negative, straight rods with rounded ends, sometimes coccobacilli, 0.3–1.0 x
1.0–3.5 µm. Motile by a polar flagellum.
Colonies are smooth, circular, convex, translucent, 1–3 mm in diameter. No brown,
water-soluble pigment is produced on TSA medium. Mesophilic, optimal growth
occurs at 30–37 ºC. Can grow in nutrient broth with: 0 and 3% NaCl. Grow on
MacConkey agar.
Isolated from aquaria of ornamental fish. Resistant to vibriostatic agent O/129.
Undetermined.
  1. A. J. Martinez-Murcia, M. J. Saavedra, V. R. Mota, T. Maier, E. Stackebrandt, and S. Cousin. Aeromonas aquariorum sp. nov.,
    isolated from aquaria of ornamental fish. Int J Syst Evol Microbiol May 2008 58:1169-1175.
  2. Antonio Martinez-Murcia, Arturo Monera, Anabel Alperi, Maria-Jose Figueras, Maria-Jose Saavedra. Phylogenetic Evidence
    Suggests That Strains of Aeromonas hydrophila subsp. dhakensis Belong to the Species Aeromonas aquariorum sp. nov. Curr
    Microbiol (2009) 58:76–80.
Positive results for catalase, oxidase, nitrate reduction, indole production, ONPG,
lactate utilization, gelatin hydrolysis, lysine decarboxylase, arginine dihydrolase,
tryptophan deaminase,
H2S production from cysteine thiosulfate, esculin hydrolysis, starch hydrolysis, acid production from:
D-glucose (with gas production), fructose, galactose, maltose, mannose, sucrose,  glycerol, glycogen, D-mannitol,
N-acetylglucosamine, D-ribose, aesculin, salicin, arbutin, trehalose, gluconate and methyl alpha-D-glucopyranoside.

Negative results for urea hydrolysis, ornithine decarboxylase, Voges-Proskauer test,  acid production from: melibiose, adonitol,
amygdalin, D- or L-arabinose, D- or L-arabitol, gentiobiose, cellobiose, dulcitol, erythritol, D- or L-fucose, D-lyxose, inositol, inulin, 2-
or 5-ketogluconate, lactose, melezitose, raffinose, L-rhamnose, D-sorbitol, L-sorbose, D-tagatose, turanose, xylitol, D- or L-xylose.
(c) Costin Stoica
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