Phylum Proteobacteria, Class Gammaproteobacteria, Order Vibrionales, Family Vibrionaceae, Genus Photobacterium,
Photobacterium rosenbergii Thompson, Thompson, Naser, Hoste, Vandemeulebroecke, Munn, Bourne and Swings, 2005.
Gram-negative, 2-4 x 1-2 μm, motile.
Colonies are convex, round, beige, opaque, 1 cm in diameter (2 days / 28 ºC, on TSA),
with entire and smooth margins; yellow colonies with raised margins on TCBS.
Grow on tryptone soy agar (TSA) Oxoid supplemented with 2% NaCl and on TCBS
agar (thiosulphate citrate bile salts sucrose) Difco. Is unable to grow in the absence
of Na+. Grow in marine broth with 2-6% NaCl.
Optimum growth temperature 20-30 ºC, no growth is observed at 4 or 40 ºC.
Isolated from different species of bleached and healthy corals (Pachyseris speciosa, Merulina ampliata, Barabattoia amicorum) from
Magnetic Island (Australia).
Resistant to O/129, fusidic acid & streptomycin.
- Thompson, F. L., Thompson, C. C., Naser, S., Hoste, B., Vandemeulebroecke, K., Munn, C., Bourne, D., Swings, J.
Photobacterium rosenbergii sp. nov. and Enterovibrio coralii sp. nov., vibrios associated with coral bleaching. Int J Syst Evol
Microbiol 2005 55: 913-917.
Positive results for nitrate reduction, arginine dihydrolase, beta-galactosidase, alkaline
phosphatase, esterase, esterase lipase, leucine arylamidase, valine arylamidase, acid
phosphatase, naphthol-AS-BI-phosphohydrolase, N-acetyl-beta-glucosaminidase,
oxidase, fermentation of: glucose, D-mannitol, sucrose, melibiose & amygdalin.
Can utilize dextrin, glycogen, Tweens 40 and 80, N-acetyl-D-glucosamine, cellobiose, D-fructose, D-galactose, alpha-D-glucose,
maltose, D-mannitol, D-mannose, D-melibiose, D-raffinose, methyl beta-D-glucoside, psicose, sucrose, D-trehalose, methyl
pyruvate, monomethyl succinate, acetic acid, cis-aconitic acid, citric acid, formic acid, p-hydroxyphenylacetic acid, alpha-ketobutyric
acid, alpha-ketoglutaric acid, DL-lactic acid, propionic acid, succinic acid, bromosuccinic acid, alaninamide, D-alanine, L-alanine,
L-alanyl glycine, L-asparagine, L-aspartic acid, L-glutamic acid, glycyl L-aspartic acid, glycyl L-glutamic acid, L-histidine, L-ornithine,
L-serine, L-threonine, inosine, uridine, thymidine, glycerol, DL-alpha-glycerol phosphate, glucose 1-phosphate & glucose
Negative results for acetoin production, indole production, lysine decarboxylase, ornithine decarboxylase, urease, tryptophan
deaminase, gelatinase, cystine arylamidase, trypsin, alpha-chymotrypsin, beta-glucuronidase, beta-glucosidase,
alpha-mannosidase, alpha-fucosidase, fermentation of: sorbitol & arabinose.
Does not utilize adonitol, L-arabinose, D-arabitol, alpha-D-lactose lactulose, xylitol, D-galactonic acid, gamma-hydroxybutyric acid,
itaconic acid, alpha-ketovaleric acid, malonic acid, D-saccharic acid, sebacic acid, hydroxy-Lproline, L-leucine, D-serine, DL-carnitine,
gamma-aminobutyric acid, urocanic acid, phenylethylamine, 2-aminoethanol & 2,3-butanediol.
Variable results for lipase, alpha-galactosidase, alpha-glucosidase, fermentation of L-rhamnose and inositol, utilization of
alpha-cyclodextrin, N-acetyl-D-galactosamine, i-erythritol, L-fucose, gentiobiose, myo-inositol, alpha-lactose, D-raffinose,
L-rhamnose, D-sorbitol, turanose, D-galacturonic acid, D-gluconic acid, D-glucosaminic acid, D-glucuronic acid, alpha-hydroxybutyric
acid, beta-hydroxybutyric acid, quinic acid, succinamic acid, glucuronamide, L-phenylalanine, L-proline, L-pyroglutamic acid &
(c) Costin Stoica