| Aeromonas sobria |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Aeromonadales, Family Aeromonadaceae, Genus Aeromonas,
Aeromonas sobria Popoff and Veron 1981.
Aeromonas sobria Popoff and Veron 1981.
Gram-negative, straight rods. Motile by a polar flagellum.
No brown diffusible pigment is produced on TSA. Beta-hemolysis on 5% sheep blod
agar is negative. Mesophilic. Optimum growth temperature 28-30 ºC. There is no
growth at 42 ºC. Grow in nutrient broth with 0% NaCl. No growth in 6% NaCl or in KCN
broth.
agar is negative. Mesophilic. Optimum growth temperature 28-30 ºC. There is no
growth at 42 ºC. Grow in nutrient broth with 0% NaCl. No growth in 6% NaCl or in KCN
broth.
Isolated from aquatic animals (fish, frog). A. sobria, has not been isolated from human clinical specimens. However, there is a
continuing use of this species name for clinical isolates, which resemble A. sobria but are actually A. veronii biovar sobria.
Resistant to vibriostatic agent O/129.
continuing use of this species name for clinical isolates, which resemble A. sobria but are actually A. veronii biovar sobria.
Resistant to vibriostatic agent O/129.
Undetermined. May be an opportunistic pathogen.
- M. Popoff and M. Veron. A Taxonomic Study of the Aeromonas hydrophila-Aeromonas punctata Group. J Gen Microbiol May 1976 94:
11-22. - Amy Martin-Carnahan and Samuel W. Joseph 2004. Order XII. Aeromonadales ord. nov. In: Bergey’s Manual of Systematic
Bacteriology, Second edition,Vol two, part B, George M. Garrity (Editor-in-Chief), pp. 556-587.
Biochemically close to A. veronii biovar sobria.
Positive results for oxidase, nitrates reduction, indole production, ONPG, citrate utilization, acetate utilization, lipase (corn oil), H2S
production from cysteine, acid production from: cellobiose, glucose (with gas production), glycerol, maltose, D-mannitol, mannose,
sucrose and trehalose.
Negative results for urease, malonate utilization, arginine dihydrolase, ornithine decarboxylase, DN-ase, elastase, esculin hydrolysis
acid production from: adonitol, L-arabinose, D-amygdalin, D-arabitol, dulcitol, erythritol, inositol, lactose, melibiose, D-raffinose,
L-rhamnose, salicin, D-sorbitol and D-xylose.
Variable results for Voges-Proskauer test, gelatin hydrolysis, lysine decarboxylase and acid production from alpha-methyl-D-glucoside.
Positive results for oxidase, nitrates reduction, indole production, ONPG, citrate utilization, acetate utilization, lipase (corn oil), H2S
production from cysteine, acid production from: cellobiose, glucose (with gas production), glycerol, maltose, D-mannitol, mannose,
sucrose and trehalose.
Negative results for urease, malonate utilization, arginine dihydrolase, ornithine decarboxylase, DN-ase, elastase, esculin hydrolysis
acid production from: adonitol, L-arabinose, D-amygdalin, D-arabitol, dulcitol, erythritol, inositol, lactose, melibiose, D-raffinose,
L-rhamnose, salicin, D-sorbitol and D-xylose.
Variable results for Voges-Proskauer test, gelatin hydrolysis, lysine decarboxylase and acid production from alpha-methyl-D-glucoside.
(c) Costin Stoica
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