| Acinetobacter venetianus |
(c) Costin Stoica
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Differential characters of hemolytic Acinetobacter species:
|
Legend: + positive 90-100%, - negative 90-100%, [+] positive 75-89%, [-] negative 75-89%, d positive 25-74% of strains
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Moraxellaceae, Genus Acinetobacter,
Acinetobacter venetianus Vaneechoutte et al. 2009 ex Di Cello et al. 1997.
Acinetobacter venetianus Vaneechoutte et al. 2009 ex Di Cello et al. 1997.
Gram-negative coccobacilli, becoming spherical in the stationary phase of growth.
Non-motile. Non-sporulated.
Non-motile. Non-sporulated.
Colonies on Columbia agar supplemented with 5% sheep blood after 24 h incubation
at 30 ºC are 1.5 mm in diameter, circular, convex and smooth. Haemolytic on sheep
blood agar. Growth occurs at 37 ºC, but not at 41 ºC. Aerobic. Grow on fuel oil and the
n-alkanes (C10, C14, and C20), and their respective oxidation products as sole
carbon sources.
at 30 ºC are 1.5 mm in diameter, circular, convex and smooth. Haemolytic on sheep
blood agar. Growth occurs at 37 ºC, but not at 41 ºC. Aerobic. Grow on fuel oil and the
n-alkanes (C10, C14, and C20), and their respective oxidation products as sole
carbon sources.
Isolated from lagoons and other waters that are contaminated with fuel oil or other products derived from petroleum.
Undetermined.
- Elliot Juni and Kjell Bovre. Order IX Pseudomonadales Orla-Jensen 1921, Family II Moraxellaceae Rossau, Van Landschoot,
Gillis and De Ley 1991 In: Bergey’s Manual of Systematic Bacteriology, Second edition,Vol two, part B, George M. Garrity (Editor-in-
Chief), pp. 411-442. - Mario Vaneechoutte, Alexandr Nemec, Martin Musilek, Tanny J. K. van der Reijden, Maria van den Barselaar, Ingela Tjernberg,
Wim Calame, Renato Fani, Thierry De Baere, and Lenie Dijkshoorn. Description of Acinetobacter venetianus ex Di Cello et al.
1997 sp. nov. Int J Syst Evol Microbiol June 2009 59:1376-1381. - Alexandr Nemec, Martin Musílek, Martina Maixnerová, Thierry De Baere, Tanny J. K. van der Reijden, Mario Vaneechoutte, and
Lenie Dijkshoorn. Acinetobacter beijerinckii sp. nov. and Acinetobacter gyllenbergii sp. nov., haemolytic organisms isolated from
humans . Int J Syst Evol Microbiol January 2009 59:118-124.
Positive results for catalase, utilization of: acetate, 4-aminobutyrate, L-arginine, benzoate, citrate (Simmons), ethanol, L-histidine,
L-leucine, D-malate and malonate.
Negative results for oxidase, utilization of: rhamnose, N-acetylglucosamine, ribose, inositol, fucose, sorbitol, arabinose, propionate,
5-ketogluconate, glycogen, m-hydroxybutyrate, 2-ketogluconate, transaconitate, beta-alanine, L-aspartate, 2,3-butanediol, citraconate,
D-glucose, D-gluconate, gentisate, glutarate, histamine, 4-hydroxybenzoate, DL-lactate, levulinate, L-ornithine, phenylacetate,
L-phenylalanine, putrescine, L-tartrate, tricarballylate, trigonelline and tryptamine. Acid is not produced from glucose.
Gelatin hydrolysis is variable.
L-leucine, D-malate and malonate.
Negative results for oxidase, utilization of: rhamnose, N-acetylglucosamine, ribose, inositol, fucose, sorbitol, arabinose, propionate,
5-ketogluconate, glycogen, m-hydroxybutyrate, 2-ketogluconate, transaconitate, beta-alanine, L-aspartate, 2,3-butanediol, citraconate,
D-glucose, D-gluconate, gentisate, glutarate, histamine, 4-hydroxybenzoate, DL-lactate, levulinate, L-ornithine, phenylacetate,
L-phenylalanine, putrescine, L-tartrate, tricarballylate, trigonelline and tryptamine. Acid is not produced from glucose.
Gelatin hydrolysis is variable.
