(c) Costin Stoica
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Moraxellaceae, Genus Acinetobacter,
Acinetobacter rudis Vaz-Moreira et al. 2011.
Gram-negative, 0.46-0.66 μm diameter, coccobacilli. Nonmotile. Nonsporulated.
Colonies are white, circular, convex and smooth after 24 h of incubation on PCA.
Growth occurs at 10–37 ºC, pH 5.0–9.5 and in the presence of up to 3% NaCl. After 7
days of incubation, no growth is observed at 6 or 40 ºC or in the presence of 5% NaCl.
Growth does not occur in an anaerobic atmosphere. Nonhemolytic on Columbia agar
with 5% sheep blood.
Isolated from raw milk and raw wastewater.
- Ivone Vaz-Moreira, Ana Novo, Elionora Hantsis-Zacharov, Ana Rita Lopes, Margarita Gomila, Olga C. Nunes, Celia M. Manaia,
and Malka Halpern. Acinetobacter rudis sp. nov., isolated from raw milk and raw wastewater. Int J Syst Evol Microbiol
December 2011 61:2837-2843.
Positive results for catalase, alkaline phosphatase, acid phosphatase, esterase C4,
esterase lipase C8, leucine arylamidase and naphthol-AS-BI-phosphohydrolase;
valine (weak), cystine arylamidases (weak), utilization of : citrate (Simmon's), L-malate,
phenylacetate, sodium malonate, sodium acetate, L-alanine, L-histidine, ethanol,
sodium benzoate, 2,3-butanediol, L-phenylalanine and propionic, lactic, capric, valeric, 3-hydroxybutyric acid & 4-hydroxybenzoic acid.
Negative results for oxidase, gelatin hydrolysis, nitrate reduction, aesculin hydrolysis, H2S production, indole production, glucose
fermentation and acid production, alpha-galactosidase, beta-galactosidase, arginine dihydrolase, lysine decarboxylase, ornithine
decarboxylase, urease, tryptophan deaminase, lipase (C14), trypsin, alpha-chymotrypsin, beta-glucuronidase, alpha-glucosidase,
beta-glucosidase, N-acetyl-beta-glucosaminidase, alpha-mannosidase, alpha-fucosidase, utilization of: D-glucose, L-arabinose,
D-mannose, D-mannitol, N-acetylglucosamine, maltose, potassium gluconate, adipate, L-rhamnose, D-ribose, inositol, sucrose,
itaconic acid, suberic acid, potassium 5-ketogluconate, glycogen, 3-hydroxybenzoic acid, L-serine, salicin, melibiose, L-fucose,
D-sorbitol, potassium 2-ketogluconate, L-proline, L-arginine, putrescine, L-aspartate & histamine.