Aliivibrio salmonicida
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Vibrionales, Family Vibrionaceae, Genus Aliivibrio, Aliivibrio salmonicida  
(Egidius, Wiik, Andersen, Hoff and Hjeltnes 1986) H. Urbanczyk, J. C. Ast, M.J. Higgins, J. Carson and P.V. Dunlap, 2007.

Historical synonyms:
Vibrio salmonicida  Egidius, Wiik, Andersen, Hoff and Hjeltnes 1986.
Gram-negative, straight rods, motile by one or more sheathed flagella. No lateral
flagella on solid media, not swarming on complex media.
Facultatively anaerobic. Can grow in nutrient broth with: 1-3.5% NaCl. No growth in
0% NaCl, 6% NaCl, 8% NaCl, 10% NaCl & 12% NaCl. Growth temperature 4-15 ºC,
no growth at  25-40 ºC.  Media: nutrient agar +  5% human blood, tryptone soy broth
supplemented with NaCl to a final concentration of 1.5%.
Isolated from diseased salmonid fish raised in ponds in Norway. Susceptible to vibriostatic compound O/129. Resistant to
Carbenicillin (100 µg) and Ampicillin (10 µg).
Causes Hitra disease (“hemorrhagic syndrome”) in salmonid fish. Pathogenicity may be lost by passage on artificial substrates but
can be regained by passage through fish.
Intraperitoneal injection of broth cultures of
V. salmonicida into both rainbow trout and Atlantic salmon and challenge through water
reproduce symptoms identical to those of natural outbreaks.
  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. Group 5 Facultatively anaerobic Gram-negative rods. Subgroup 2 Family Vibrionaceae. In: Begey’s Manual of
    Determinative Bacteriology, 9-th edition, Williams & Wilkins. pp. 190-194.
  3. H. Urbanczyk, J.C.Ast, M.J. Higgins, J. Carson and P.V. Dunlap, 2007, Reclassification of Vibrio fischeri, Vibrio logei, Vibrio
    salmonicida and Vibrio wodanis as Aliivibrio fischeri gen. nov., comb. nov., Aliivibrio logei comb. nov., Aliivibrio salmonicida
    comb. nov. and Aliivibrio wodanis comb. nov. IJSEM 57, 2823-2829.
  4. Egidius, E., Wiik, R., Andersen, K., Hoff, K. A., Hjeltnes, B. Vibrio salmonicida sp. nov., a New Fish Pathogen. Int J Syst Bacteriol
    1986 36: 518-520.
Positive results for ornithine (1% NaCl), nitrate reduction to nitrite, oxidase, catalase,
acid production from D-glucose, cellobiose, D-galactose, maltose, D-mannitol, D-
mannose, assimilation of  acetate, citrate, galactose, gluconate &  saccharose.

Negative results for indole production (Heart Infusion Broth, 1% NaCl), Voges-Proskauer (1% NaCl), citrate utilization (Simmons), H
2S,
arginine (1% NaCl), lysine (1% NaCl), gelatin hydrolysis (1% NaCl, 22 ºC), esculin hydrolysis, ONPG test, urea hydrolysis, gas
production from D-glucose, acid production from: D-adonitol, L-arabinose, D-arabitol, arbutin, dulcitol, myo-inositol, lactose, melibiose,
raffinose, L-rhamnose, salicin, D-sorbitol, sucrose & D-xylose, assimilation of D-alanine, citrullin, glucuronate, histidine, hydroxyproline,
DL-lactate,  lactose & propionate

Variable results for lipase & acid production from trehalose.
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