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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Proteobacteria => Gammaproteobacteria => Vibrionales => Vibrionaceae => Vibrio => Vibrio neptunius Thompson et al. 2003.
Historical synonym: FAFLP group A5 Thompson, Hoste, Vandemeulebroecke & Swings, 2001.
Historical synonym: FAFLP group A5 Thompson, Hoste, Vandemeulebroecke & 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 °C. Colonies are yellow, transparent, umbonate,
round, smooth, shiny, 2-3 mm in diameter on TCBS agar after 24 h at 28 °C.
Can grow in nutrient broth with:2.5% NaCl. No growth in 0% NaCl, 8% NaCl & 10%
NaCl. Optimal growth at 30 -35 °C. No growth at 4 °C or 40 °C. Facultative anaerobe.
No luminescence produced.
mm in diameter after 48 h at 28 °C. Colonies are yellow, transparent, umbonate,
round, smooth, shiny, 2-3 mm in diameter on TCBS agar after 24 h at 28 °C.
Can grow in nutrient broth with:2.5% NaCl. No growth in 0% NaCl, 8% NaCl & 10%
NaCl. Optimal growth at 30 -35 °C. No growth at 4 °C or 40 °C. Facultative anaerobe.
No luminescence 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 & 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 & 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,
& D-glucose.
Can utilize as sole carbon sources: citrate, glycogen, D-mannose, methyl beta-D-glucoside, sucrose, D-serine, L-threonine, glucose
1-phosphate & 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 & 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 & 2,3-butanediol.
phosphatase, lipase (C14), nitrate reduction, methyl red, gelatinase, citrate utilization,
Voges-Proskauer reaction, tryptophan deaminase, trypsin, acid production from: sucrose,
& D-glucose.
Can utilize as sole carbon sources: citrate, glycogen, D-mannose, methyl beta-D-glucoside, sucrose, D-serine, L-threonine, glucose
1-phosphate & 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 & 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 & 2,3-butanediol.
(c) Costin Stoica
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