Arcobacter nitrofigilis
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Campylobacteraceae, Genus Arcobacter,  
Arcobacter nitrofigilis (McClung et al. 1983) Vandamme et al. 1991. Type species of the genus.
Basonym:
Campylobacter nitrofigilis McClung et al. 1983.
Gram-negative, small, curved rods, 0.2-0.9 x 1-3 μm. Rarely helical cells. Coccoid
forms develop in old cultures.
Motile by means of a single polar flagellum. Not
swarming on moist media.
Colonies are 2-3 mm in diameter, circular, convex, and have a beige to off-white color
after 48 hours incubation. A brown, water-soluble pigment is produced from
tryptophan. No growth at 4 or 42 ºC. Optimum growth temperature 25-30 ºC.
Does not grow at 37 ºC under aerobic or microaerobic conditions. Grows on media
containing 0.05% sodium fluoride, 1-7% NaCl, 0.02% safranin, KMnO
4 but not on
charcoal-based media, or media containing 1.0
-2.0% ox bile or 1% glycine.
Isolated from the roots and root-associated sediments of Spartina alterniflora growing in saline marshes.
Undetermined. Nitrogen fixing bacteria.
  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, E. Falsen, R. Rossau, B. Hoste, P. Segers, R. Tytgat, and J. De Ley. Revision of Campylobacter, Helicobacter, and
    Wolinella Taxonomy: Emendation of Generic Descriptions and Proposal of Arcobacter gen. nov. Int J Syst Bacteriol January 1991
    41:88-103.
Positive results for urease, catalase, nitrate reduction, oxidase, indoxyl acetate hydrolysis & H2S production on TSI.

Negative results for alkaline phosphatase, DN-ase & hippurate hydrolysis. No carbohydrates fermentation.
(c) Costin Stoica
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