Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Vibrionales, Family Vibrionaceae, Genus Vibrio, Vibrio fortis Thompson,
Thompson, Hoste, Vandemeulebroecke, Gullian and Swings, 2003.
Historical synonyms: FAFLP (fluorescent amplified fragment length polymorphism) clusters A9 and A60, Thompson, Hoste,
Vandemeulebroecke & Swings, 2001.
Gram-negative, slightly curved cells, 1 x 3 µm. Motile.
Colonies on TSA are smooth, beige, low convex, translucent to opaque, not swarming,
4 mm in diameter after 48 hours incubation at 28 ºC. Strains form yellow and/or green,
translucent colonies on TCBS agar. Can grow in nutrient broth with: 1% to 8% NaCl; no
growth in 0% or 10% NaCl. Facultatively anaerobic.
Previous group A9 strains were found to be ubiquitous in the marine environment, associated with aquatic animals (Nodipecten
nodosus, Salmo salar, Crassostrea gigas).
The type strain , LMG 21557T (formerly group A9 member), was isolated from the white shrimp Litopenaeus vannamei in Ecuador.
Susceptible to O/129 vibriostatic agent.
Associated with both diseased and healthy aquatic animals (healthy and diseased bivalve larvae Nodipecten nodosus, Atlantic
salmon Salmo salar, diseased oyster larvae Crassostrea gigas)
- F.L. Thompson, C.C. Thompson, B. Hoste, K. Vandemeulebroeke, M. Gullian and J. Swings, 2003. Vibrio fortis sp. nov. and Vibrio
hepatarius sp.nov., isolated from aquatic animals and the marine environment. IJSEM 53, 1495-1501.
Positive results for indole production, oxidase, catalase, beta-galactosidase, nitrate
reduction, acid production from D-glucose and D-mannitol.
Negative results for H2S, urease, lysine decarboxylase, ornithine decarboxylase,
arginine dihydrolase, gelatinase, acid production from: D-sorbitol, inositol, L-rhamnose and arabinose.
Variable results for acid production from: sucrose, melibiose and amygdalin.
(c) Costin Stoica