Campylobacter ureolyticus
Taxonomy
Morphology
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Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Campylobacter,  
Campylobacter ureolyticus
 (Jackson and Goodman 1978) Vandamme et al. 2010.
Basonym:
Bacteroides ureolyticus Jackson and Goodman 1978.
Gram-negative cells, 0.5 x 1.5-4 μm. Nonmotile. Filaments exceeding 20 μm in length
may occur.
Colonies on blood agar are translucent, pinpoint, 1-2 mm or up to 5 mm in diameter.
Does not grow microaerobically on common agar bases in an atmosphere without
hydrogen. Will not grow in air, in a CO
2-enriched atmosphere, or in an atmosphere
containing O
2:CO2:N2 (5:10:85) on common agar bases. Requires formate and
fumarate for growth. No growth at 25 ºC. Some strains may grow at 42 ºC.
Grows on media containing 0.05% sodium fluoride, 1% glycine, 2
-4.0% NaCl and
0.032% methyl orange, but not on 0.04% 2,3,5-triphenyl-tetrazolium chloride, 1.5-2%
ox-bile & 0.02% safranin.
Isolated from superficial ulcers and soft tissue infections, nongonococcal, nonchlamydial urethritis, and periodontal disease.
Uncertain. Strains were isolated from mixed infections.
  1. Don J. Brenner and J.J. Farmer III, 2001. Family I. Campylobacteraceae. In:  Bergey’s Manual of Systematic Bacteriology, Second
    edition,Vol 2, part C, George M. Garrity (Editor-in-Chief), pp 1145-1168.
  2. P. Vandamme, L. Debruyne, E. De Brandt, and E. Falsen. Reclassification of Bacteroides ureolyticus as Campylobacter
    ureolyticus comb. nov., and emended description of the genus Campylobacter. Int J Syst Evol Microbiol September 2010 60:2016-
    2022.
Positive results for urease, nitrate reduction, oxidase, casein hydrolysis (weak), & gelatin hydrolysis.
Negative results for indoxyl acetate hydrolysis, selenite reduction, alkaline phosphatase, DN-ase, catalase (most strains),
H2S
production on TSI & hippurate hydrolysis. No carbohydrates fermentation.
(c) Costin Stoica
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