| Vibrio neptunius |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Vibrionales, Family Vibrionaceae, Genus Vibrio, Vibrio neptunius
Thompson et al. 2003. Historical synonym: FAFLP group A5 Thompson, Hoste, Vandemeulebroecke and Swings, 2001.
Thompson et al. 2003. Historical synonym: FAFLP group A5 Thompson, Hoste, Vandemeulebroecke and Swings, 2001.
Gram-negative, slightly curved cells, 1 x 2.3 - 3 µm, motile by at least one polar
flagellum.
flagellum.
Colonies on TSA are translucent, non-swarming, convex, smooth, rounded, beige, 3
mm in diameter after 48 h at 28 ºC. Colonies are yellow, transparent, umbonate,
round, smooth, shiny, 2-3 mm in diameter on TCBS agar after 24 h at 28 ºC.
Can grow in nutrient broth with:2.5% NaCl. No growth in 0% NaCl, 8% NaCl & 10%
NaCl. Optimal growth at 30 -35 ºC. No growth at 4 ºC or 40 ºC. Facultative anaerobe.
Luminescence is not produced.
mm in diameter after 48 h at 28 ºC. Colonies are yellow, transparent, umbonate,
round, smooth, shiny, 2-3 mm in diameter on TCBS agar after 24 h at 28 ºC.
Can grow in nutrient broth with:2.5% NaCl. No growth in 0% NaCl, 8% NaCl & 10%
NaCl. Optimal growth at 30 -35 ºC. No growth at 4 ºC or 40 ºC. Facultative anaerobe.
Luminescence is not produced.
Isolated from larvae of the bivalve Nodipecten nodosus in Brasil, culture water of rotifers, rotifer in recirculation system (Brachionus
plicatilis), gut of turbot larvae (Scophthalmus maximus), diseased bivalve larvae (Nodipecten nodosus), healthy rotifer (Brachionus
plicatilis).
Sensitive to vibriostatic agent O/129, resistant to Kanamycin and Ampicillin.
plicatilis), gut of turbot larvae (Scophthalmus maximus), diseased bivalve larvae (Nodipecten nodosus), healthy rotifer (Brachionus
plicatilis).
Sensitive to vibriostatic agent O/129, resistant to Kanamycin and Ampicillin.
The strain LMG 20615 was isolated from diseased bivalve larvae (Nodipecten nodosus).
- F.L.Thompson, Y. Li, B. Gomez-Gil, C.C. Thompson, B. Hoste , K. Vandemeulebroecke, G. S. Rupp, A. Pereira, M. M. De Bem, P.
Sorgeloos and J.Swings. Vibrio neptunius sp. nov., Vibrio brasiliensis sp. nov. and Vibrio xuii sp. nov., isolated from the marine
aquaculture environment (bivalves, fish, rotifers and shrimps). IJSEM 53, 245-252.
Positive results for arginine dihydrolase, indole production, oxidase, catalase, alkaline phosphatase, lipase (C14), nitrate reduction,
methyl red, gelatinase, citrate utilization, Voges-Proskauer reaction, tryptophan deaminase, trypsin, acid production from: sucrose,
and D-glucose.
Can utilize as sole carbon sources: citrate, glycogen, D-mannose, methyl beta-D-glucoside, sucrose, D-serine, L-threonine, glucose
1-phosphate and glucose 6-phosphate.
Negative results for lysine decarboxylase, ornithine decarboxylase, alpha-galactosidase, beta-galactosidase, acid phosphatase,
valine arylamidase, esterase (C4), esterase lipase (C8), H2S, urease, alpha-glucosidase, beta-glucosidase, alpha-chymotrypsin,
acid production from: arabinose, sorbitol, melibiose, mannito, amygdalin, inositol and rhamnose.
No utilization of: Tween 80, N-acetyl-D-galactosamine, L-arabinose, cellobiose, D-galactose, gentiobiose, D-mannitol, D-sorbitol,
turanose, monomethyl succinate, D-gluconic acid, beta-hydroxybutyric acid, gamma-hydroxybutyric acid, p-hydroxyphenylacetic acid,
hydroxy-L-proline, L-phenylalanine, DL-carnitine, gamma-aminobutyric acid, putrescine and 2,3-butanediol.
methyl red, gelatinase, citrate utilization, Voges-Proskauer reaction, tryptophan deaminase, trypsin, acid production from: sucrose,
and D-glucose.
Can utilize as sole carbon sources: citrate, glycogen, D-mannose, methyl beta-D-glucoside, sucrose, D-serine, L-threonine, glucose
1-phosphate and glucose 6-phosphate.
Negative results for lysine decarboxylase, ornithine decarboxylase, alpha-galactosidase, beta-galactosidase, acid phosphatase,
valine arylamidase, esterase (C4), esterase lipase (C8), H2S, urease, alpha-glucosidase, beta-glucosidase, alpha-chymotrypsin,
acid production from: arabinose, sorbitol, melibiose, mannito, amygdalin, inositol and rhamnose.
No utilization of: Tween 80, N-acetyl-D-galactosamine, L-arabinose, cellobiose, D-galactose, gentiobiose, D-mannitol, D-sorbitol,
turanose, monomethyl succinate, D-gluconic acid, beta-hydroxybutyric acid, gamma-hydroxybutyric acid, p-hydroxyphenylacetic acid,
hydroxy-L-proline, L-phenylalanine, DL-carnitine, gamma-aminobutyric acid, putrescine and 2,3-butanediol.
(c) Costin Stoica
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