| Pseudomonas piscis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas piscis Liu et al. 2020.
Genus Pseudomonas, Pseudomonas piscis Liu et al. 2020.
Gram-negative, short rods, 0.9-1.8 x 0.4-0.6 µm. Motile by polar multitrichous flagella.
Non-spore-forming.
Non-spore-forming.
Colonies are light-yellow, circular, smooth, 4-5 mm diameter after 3 days of
incubation at 28 ºC in TSA. Growth occurs at 15-37 °C, not at 4 or 42 °C, (optimal
temperature, 28 °C), at pH 5.5-8.5 (optimal pH, 7.5) and with 0-5.0 % (w/v) NaCl
(optimal concentration, 2.0 %). Strictly aerobic.
incubation at 28 ºC in TSA. Growth occurs at 15-37 °C, not at 4 or 42 °C, (optimal
temperature, 28 °C), at pH 5.5-8.5 (optimal pH, 7.5) and with 0-5.0 % (w/v) NaCl
(optimal concentration, 2.0 %). Strictly aerobic.
Isolated from the profound head ulcers of farmed Murray cod (Maccullochella peelii peelii) from the town of Dajing, Yueqing City,
Zhejiang Province, China.
Zhejiang Province, China.
Undetermined.
- Liu Y, Rao Q, Blom J, Lin Q, Luo T. Pseudomonas piscis sp. nov., isolated from the profound head ulcers of farmed Murray cod
(Maccullochella peelii peelii). Int J Syst Evol Microbiol 2020; 70:2732-2739.
Positive results for arginine dihydrolase, acid and alkaline phosphatase, catalase, citrate utilization, cystine arylamidase (weak),
esterase (C4), esterase lipase (C8), leucine arylamidase, lipase (C14) (weak), naphthol-AS-BI-phosphohydrolase, oxidase, trypsin,
alpha-chymotrypsin, Tween 80, urease (weak) and valine arylamidase.
Can utilize: L-alanine, L-arginine, L-aspartic acid, acetic acid, citric acid, L-fucose, 2-ketogluconate, DL-lactic acid, D-mannose,
melibiose, malic acid, galactose, glycerol, D-gluconic acid, glucuronamide, glycyl-L-proline, L-glutamic acid, L-histidine,
alpha-ketoglutaric acid, L-pyroglutamic acid, propionic acid, D-ribose, sorbitol, L-serine, gamma-aminobutryric acid,
beta-hydroxy-D,L-butyric acid and D-xylose.
Can assimilate D-glucose, L-arabinose (weak), D-mannose, N-acetyl-glucosamine, maltose (weak), potassium gluconate, capric
acid, adipic acid (weak), malic acid, trisodium citrate and phenylacetic acid (weak).
Negative results for aesculin hydrolysis, alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase, beta-glucuronidase,
alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, H2S production, indole production, alpha-mannosidase, nitrate
reduction, denitrification, tryptophane deaminase, acetoin production (Voges-Proskauer).
No utilization of D-arabitol, formic acid, glycogen, myo-inositol, 5-ketogluconate, starch, salicin, sucrose, L-rhamnose and tryptophan.
Variable acid production from glucose, utilization of: D-mannitol and trehalose.
esterase (C4), esterase lipase (C8), leucine arylamidase, lipase (C14) (weak), naphthol-AS-BI-phosphohydrolase, oxidase, trypsin,
alpha-chymotrypsin, Tween 80, urease (weak) and valine arylamidase.
Can utilize: L-alanine, L-arginine, L-aspartic acid, acetic acid, citric acid, L-fucose, 2-ketogluconate, DL-lactic acid, D-mannose,
melibiose, malic acid, galactose, glycerol, D-gluconic acid, glucuronamide, glycyl-L-proline, L-glutamic acid, L-histidine,
alpha-ketoglutaric acid, L-pyroglutamic acid, propionic acid, D-ribose, sorbitol, L-serine, gamma-aminobutryric acid,
beta-hydroxy-D,L-butyric acid and D-xylose.
Can assimilate D-glucose, L-arabinose (weak), D-mannose, N-acetyl-glucosamine, maltose (weak), potassium gluconate, capric
acid, adipic acid (weak), malic acid, trisodium citrate and phenylacetic acid (weak).
Negative results for aesculin hydrolysis, alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase, beta-glucuronidase,
alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, H2S production, indole production, alpha-mannosidase, nitrate
reduction, denitrification, tryptophane deaminase, acetoin production (Voges-Proskauer).
No utilization of D-arabitol, formic acid, glycogen, myo-inositol, 5-ketogluconate, starch, salicin, sucrose, L-rhamnose and tryptophan.
Variable acid production from glucose, utilization of: D-mannitol and trehalose.
(c) Costin Stoica
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