Vibrio ordalii
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Proteobacteria => Gammaproteobacteria => Vibrionales => Vibrionaceae => Vibrio =>Vibrio ordalii  Schiewe et al. 1982. Is very
closely related with
Vibrio anguillarum.

Synonyms: Vibrio sp. RT group,
Beneckea anguillara biotype I , V. anguillarum biotype 2.
Gram negative cells, 2.5–3.0 x 1.0 um, motile by a single polar flagellum. Not
swarming on complex media. No luminiscence.
Can grow in nutrient broth with:  1% NaCl & 6% NaCl. No growth in 0% NaCl, 8%
NaCl, 10% NaCl & 12% NaCl. Growth temperature 30 °C, no growth at  4 °C or 35 °C.
Grows slowly, forming visible colonies on trypticase soy agar after 4-6 days; growth is
enhanced by the adition of NaCl (is a halophilic species).
Isolated from fish. Sensible to O/129 vibriostatic agent (10 & 150 µg).
Fish pathogen isolated from diseased salmonid fish, from ayu (Plecoglassus altivelis) and rockfish fingerlings (Sebastes schlegeli)
  1. J.J. Farmer, M. Janda, 2004.Family I. Vibrionaceae . In:  Bergey’s Manual of Systematic Bacteriology, Second edition,Vol two,
    part B, George M. Garrity (Editor-in-Chief),   pp. 491-546.
  2. J. G.Holt et al., 1994.Begey’s manual of Determinative Bacteriology, 9-th edition, Williams & Wilkins.
Positive results for gelatin hydrolysis (1% NaCl, 22 °C), nitrate reduction to nitrite,
oxidase, acid production from D-glucose, maltose, sucrose & trehalose.

Negative results for indole production (Heart Infusion Broth, 1% NaCl), Voges-Proskauer (1% NaCl), citrate utilization (Simmons),
urea hydrolysis, arginine (1% NaCl), lysine (1% NaCl), ornithine (1% NaCl), lipase, ONPG test,  gas production from D-glucose, acid
production from:D-adonitol, L-arabinose, D-arabitol, cellobiose, dulcitol, D-galactose, glycerol, myo-inositol, lactose, D-mannitol,
D-mannose, melibiose, raffinose, L-rhamnose, salicin, D-sorbitol & D-xylose.
(c) Costin Stoica
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