| Aeromonas veronii |
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Aeromonadales, Family Aeromonadaceae, Genus Aeromonas,
Aeromonas veronii Hickman-Brenner et al. 1988. Includes two biovars (or biogroups), Sobria and Veronii.
Possible synonyms: Aeromonas culicicola Pidiyar et al. 2002, Aeromonas ichthiosmia
Schubert et al. 1991.
Aeromonas veronii Hickman-Brenner et al. 1988. Includes two biovars (or biogroups), Sobria and Veronii.
Possible synonyms: Aeromonas culicicola Pidiyar et al. 2002, Aeromonas ichthiosmia
Schubert et al. 1991.
Gram-negative, straight rod, nonspore-forming, nonencapsulated. Motile by a polar
flagellum.
flagellum.
Strongly beta-hemolytic colonies on sheep blood agar. Optimum growth temperature
28-30 ºC. No brown diffusible pigment is produced on TSA.
28-30 ºC. No brown diffusible pigment is produced on TSA.
Isolated from aquatic environments, including leeches (Hirudo medicinalis) and human clinical specimens. Resistant to vibriostatic
agent O/129, ampicillin and carbenicillin.
Aeromonas culicicola was isolated from the midgut of female Culex quinquefasciatus and Aedes aegyptii mosquitoes.
agent O/129, ampicillin and carbenicillin.
Aeromonas culicicola was isolated from the midgut of female Culex quinquefasciatus and Aedes aegyptii mosquitoes.
Aeromonas veronii biovar veronii - isolated from human clinical specimens; diarrhea, wounds, pulmonary complications, sinusitis,
wounds & bacteremia.
Aeromonas veronii biovar sobria - associated with gastrointestinal disease and a wide array of extraintestinal and systemic disease
including septicemia, wound infections, meningitis, peritonitis, septic arthritis, and hepatobiliary disease.
Symbiont of the medicinal leech (Hirudo medicinalis).
wounds & bacteremia.
Aeromonas veronii biovar sobria - associated with gastrointestinal disease and a wide array of extraintestinal and systemic disease
including septicemia, wound infections, meningitis, peritonitis, septic arthritis, and hepatobiliary disease.
Symbiont of the medicinal leech (Hirudo medicinalis).
- F W Hickman-Brenner, K L MacDonald, A G Steigerwalt, G R Fanning, D J Brenner, and J J Farmer 3rd. Aeromonas veronii, a new
ornithine decarboxylase-positive species that may cause diarrhea. J. Clin. Microbiol. May 1987 25:5 900-906. - 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. - Joerg Graf. Symbiosis of Aeromonas veronii Biovar sobria and Hirudo medicinalis, the Medicinal Leech: a Novel Model for Digestive
Tract Associations. Infect. Immun. January 1999 67:1-7. - M. D. Collins, A. J. Martinez-Murcia, and J. Cai. Aeromonas enteropelogenes and Aeromonas ichthiosmia Are Identical to
Aeromonas trota and Aeromonas veronii, Respectively, as Revealed by Small-Subunit rRNA Sequence Analysis. Int J Syst Bacteriol
October 1993 43:855-856. - Vyankatesh Pidiyar, Adam Kaznowski, N. Badri Narayan, Milind Patole, and Yogesh S. Shouche. Aeromonas culicicola sp. nov., from
the midgut of Culex quinquefasciatus. Int J Syst Evol Microbiol September 2002 52:1723-8.
Biochemically very close to Vibrio cholerae.
Positive results for oxidase, catalase, nitrates reduction, indole production, ONPG, acetate utilization, gelatin hydrolysis, ornithine
decarboxylase, lipase (corn oil), acid production from: D-glucose (with gas production), glycerol, maltose, D-mannitol, mannose,
sucrose and trehalose.
Negative results for urea hydrolysis, malonate utilization, elastase, acid production from: adonitol, D-amygdalin, D-arabitol, dulcitol,
eryhritol, inositol, melibiose, D-raffinose, L-rhamnose, D-sorbitol and D-xylose.
Variable results for Voges-Proskauer test, DN-ase, H2S production from cysteine, acid production from: cellobiose and lactose.
Positive results for oxidase, catalase, nitrates reduction, indole production, ONPG, acetate utilization, gelatin hydrolysis, ornithine
decarboxylase, lipase (corn oil), acid production from: D-glucose (with gas production), glycerol, maltose, D-mannitol, mannose,
sucrose and trehalose.
Negative results for urea hydrolysis, malonate utilization, elastase, acid production from: adonitol, D-amygdalin, D-arabitol, dulcitol,
eryhritol, inositol, melibiose, D-raffinose, L-rhamnose, D-sorbitol and D-xylose.
Variable results for Voges-Proskauer test, DN-ase, H2S production from cysteine, acid production from: cellobiose and lactose.
(c) Costin Stoica
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Differential characters of the Aeromonas veronii subspecies:
Legend: + positive > 85%, - negative > 85% d variable
