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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Proteobacteria => Gammaproteobacteria => Vibrionales => Vibrionaceae => Photobacterium => Photobacterium leiognathi (Hendrie,
Hodgkiss and Shewan 1970) Boisvert, Chatelain and Bassot 1967.
Old synonym: Photobacterium mandapamensis Hendrie, Hodgkiss & Shewan 1970.
Hodgkiss and Shewan 1970) Boisvert, Chatelain and Bassot 1967.
Old synonym: Photobacterium mandapamensis Hendrie, Hodgkiss & Shewan 1970.
Gram negative, motile, coccobacilli, 1.6 x 3.2 μm.
Colonies are smooth, transparent, convex, yellow, 1 mm in diameter.
Grow on blood agar, BHI-agar, TSA supplemented with 1% NaCl, thiosulfate citrate
bile sucrose agar, and marine agar; unable to grow in the absence of Na+. Grow in
nutrient broth with 1-6% NaCl. Optimum temperature 30 °C. No growth at 4 or 40 °C.
Facultative anaerobe, chemoorganotrophic, luminescent , no hemolysin production.
Grow on blood agar, BHI-agar, TSA supplemented with 1% NaCl, thiosulfate citrate
bile sucrose agar, and marine agar; unable to grow in the absence of Na+. Grow in
nutrient broth with 1-6% NaCl. Optimum temperature 30 °C. No growth at 4 or 40 °C.
Facultative anaerobe, chemoorganotrophic, luminescent , no hemolysin production.
Isolated from the light organs of fish from Leiognathidae and Apogonidae families (in warm, shallow, tropical water).
Susceptible to vibriostatic agent O/129, resistant to penicillin-G, oxacillin & amoxicillin.
Susceptible to vibriostatic agent O/129, resistant to penicillin-G, oxacillin & amoxicillin.
Unknown (none).
- An Thyssen , Frans Ollevier, 2004. Genus II . Photobacterium Beijerinck 1889. In: Bergey’s Manual of Systematic Bacteriology,
Second edition,Vol two, part B, George M. Garrity (Editor-in-Chief), pp. 546-555. - J. G.Holt et al., 1994.Begey’s Manual of Determinative Bacteriology, 9-edition, Williams & Wilkins, 192, 256-257.
- Margaret S. Hendrie, J.M. Shewan ,1974.Genus IV. Photobacterium Beijerinck 1889. In.: Bergey’s Manual of Determinative
Bacteriology, Eighth Edition, R. E. Buchanan and N.E. Gibbons (Editors), The Williams & Wilkins Company, Baltimore, 349-351.
Positive results for methyl red, arginine dihydrolase, lipase, ONPG test, nitrate
reduction to nitrite, acid production from: D-glucose, D-galactose & D-mannose.
Assimilate gluconate, L-proline & pyruvate.
Negative results for indole, citrate utilization (Simmons), H2S production, urea hydrolysis, oxidase, ornithine decarboxylase, gelatin
hydrolysis, esculin hydrolysis, gas production from D-glucose, acid production from: D-adonitol, L-arabinose, D-arabitol, cellobiose,
dulcitol, myo-inositol, lactose, maltose, D-mannitol, melibiose, raffinose, L-rhamnose, salicin, D-sorbitol, sucrose, trehalose &
D-xylose.
D-xylose, melibiose, maltose & cellobiose are not assimilated.
Variable results for oxidase, Voges-Proskauer reaction & lysine decarboxylase.
reduction to nitrite, acid production from: D-glucose, D-galactose & D-mannose.
Assimilate gluconate, L-proline & pyruvate.
Negative results for indole, citrate utilization (Simmons), H2S production, urea hydrolysis, oxidase, ornithine decarboxylase, gelatin
hydrolysis, esculin hydrolysis, gas production from D-glucose, acid production from: D-adonitol, L-arabinose, D-arabitol, cellobiose,
dulcitol, myo-inositol, lactose, maltose, D-mannitol, melibiose, raffinose, L-rhamnose, salicin, D-sorbitol, sucrose, trehalose &
D-xylose.
D-xylose, melibiose, maltose & cellobiose are not assimilated.
Variable results for oxidase, Voges-Proskauer reaction & lysine decarboxylase.
(c) Costin Stoica
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