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| Raoultella ornithinolytica |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Enterobacterales, Family Enterobacteriaceae, Genus
Raoultella, Raoultella ornithinolytica (Sakazaki et al. 1989) Drancourt et al. 2001.
Basonym: Klebsiella ornithinolytica Sakazaki et al. 1989.
Raoultella, Raoultella ornithinolytica (Sakazaki et al. 1989) Drancourt et al. 2001.
Basonym: Klebsiella ornithinolytica Sakazaki et al. 1989.
Gram-negative, straight rods, 0.3-1.0 μm x 0.6-6 μm. Non-motile.
Glistening moist colonies of varying degrees of stikiness (M–type colonies).
No special requirements. Facultatively anaerobic, optimum growth temperature 35 -
37 ºC. Can grow at 5 ºC. Media: Nutrient agar or Nutrient broth, Trypticase Soy Agar ±
5% sheep blood, Mac Conkey agar, Mueller-Hinton agar.
No special requirements. Facultatively anaerobic, optimum growth temperature 35 -
37 ºC. Can grow at 5 ºC. Media: Nutrient agar or Nutrient broth, Trypticase Soy Agar ±
5% sheep blood, Mac Conkey agar, Mueller-Hinton agar.
Isolated from clinical materials, including urine, sputa, stool, and pus. Can be found in food.
Undetermined.
- J. G. Holt et al., 1994. Facultatively Anaerobic Gram-Negative Rods. Subgroup 1. Family Enterobacteriaceae. In: Begey’s Manual of
Determinative Bacteriology, 9th-edition, Williams & Wilkins, pp 175-189. - Don J. Brenner and J.J. Farmer III, 2001. Family I. Enterobacteriaceae. In: Bergey’s Manual of Systematic Bacteriology, Second
edition, Vol two, part B, George M. Garrity (Editor-in-Chief), pp 587-897. - M. Drancourt, C. Bollet, A. Carta, and P. Rousselier. Phylogenetic analyses of Klebsiella species delineate Klebsiella and
Raoultella gen. nov., with description of Raoultella ornithinolytica comb. nov., Raoultella terrigena comb. nov. and Raoultella
planticola comb. nov. Int J Syst Evol Microbiol May 2001 51:925-32. - Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for
Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov.,
Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol
2016; 66:5575-5599.
Positive results for ONPG, lysine decarboxylase, catalase, malonate test, methyl red test, nitrate reduction, tartrate utilization, urease,
acid production from: L-arabinose, D-adonitol, cellobiose, glucose, mannitol, melibiose, maltose, D-mannose, raffinose, salicin,
trehalose and D-xylose.
Negative results for arginine dihydrolase, DN-ase, gelatin hydrolysis, H2S production, phenylalanine deaminase, lipase, oxidase, acid
production from dulcitol.
acid production from: L-arabinose, D-adonitol, cellobiose, glucose, mannitol, melibiose, maltose, D-mannose, raffinose, salicin,
trehalose and D-xylose.
Negative results for arginine dihydrolase, DN-ase, gelatin hydrolysis, H2S production, phenylalanine deaminase, lipase, oxidase, acid
production from dulcitol.
(c) Costin Stoica
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Differential characters of the Raoultella species:
Legend: + positive 90-100%, - negative 90-100%, [+] positive 75-89%, [-] negative 75-89%, d positive 25-74% of strains
