Arcobacter cibarius
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Arcobacter,  
Arcobacter cibarius  Houf et al. 2005.
Gram-negative, slightly curved cells, 0.5 x 1.5 μm. Motile by means of a polar flagellum.  
Colonies are non-haemolytic, 1-2 mm in diameter, whitish, low convex, non-swarming,
smooth-rounded and entire margins on blood agar. Translucent, 1-2 mm colonies on
Arcobacter selective agar. Variable growth on MacConkey agar and Campylobacter
charcoal-deoxycholate base media.
Grows on media containing  0.02-0.05 safranin, 32 mg/l carbenicillin, 64 mg/l
cefoperazone, 0.032% methyl orange & 0.1% sodium deoxycholate.
No growth on media containing 1.0% glycine, 2–4% NaCl or 0.2% pyronin.
Variable growth on media containing basic fuchsin, crystal violet, Janus green,  sodium
fluoride, 0.04% triphenyl-tetrazolium chloride, 0.1%  KMnO4, 0.001% sodium arsenite &
32 mg/L nalidixic acid.
Microaerophilic, weak growth is obtained in anaerobic conditions. Optimum growth
temperature 18-22 ºC. No growth is obtained at 37 ºC in aerobic conditions; some  
strains grow at 25 ºC aerobically. Growth at 42 ºC is negative.
Isolated from broiler carcasses (skin).
Undetermined.
  1. Kurt Houf, Stephen L. W. On, Tom Coenye, Jan Mast, Jan Van Hoof, and Peter Vandamme. Arcobacter cibarius sp. nov., isolated
    from broiler carcasses. Int J Syst Evol Microbiol March 2005 55:713-717.
Positive results for oxidase & indoxyl acetate hydrolysis.
Negative results for nitrate reduction, urease, alkaline phosphatase, selenite reduction, hippurate hydrolysis, DN-ase,
& H2S
production on TSI. No carbohydrates fermentation.
Variable results for catalase.
(c) Costin Stoica
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