| Pseudomonas psychrophila |
Positive results for alkaline phosphatase, arginine dihydrolase, catalase, methyl red test, nitrate reduction (weakly), oxidase, Tween 20,
40, and 60 hydrolysis, urease, acid production from: D-glucose, L-arabinose, D-fructose, D-mannose, melibiose, sucrose, D-xylose,
raffinose, mannitol, galactose, and trehalose.
Can utilize gluconate, D-galacturonate, succinamic acid, glucuronamide, L-alanyl glycine (weakly), hydroxy-L-proline, urocanate,
inosine, acetate (weakly), monomethyl succinate, L-arabinose, D-fructose, D-glucose, glycerol, D-mannose, melibiose, raffinose,
sucrose, D-xylose, trehalose (weakly), mannitol, D-galactose, L-proline, succinate, glutamate, and citrate.
Negative results for alginic acid hydrolysis, casein hydrolysis, DNase, esculin hydrolysis, gelatin hydrolysis, H2S production, indole
production, lysine decarboxylase, ornithine decarboxylase, starch hydrolysis, Tween-80 hydrolysis, Voges-Proskauer test, acid
production from: maltose, inositol, sorbitol and rhamnose.
No utilization of erythritol, D-galactonate acid lactone, maltose, sorbitol, rhamnose, cellobiose, inositol and N-acetyl-D-glucosamine,
gentiobiose, glycogen, L-arabitol, L-rhamnose, L-sorbose, methyl alpha-D-glucoside, methyl alpha-D-mannoside, methyl beta-D-
xylopyranoside, salicin and xylitol.
Variable results for acid phosphatase
40, and 60 hydrolysis, urease, acid production from: D-glucose, L-arabinose, D-fructose, D-mannose, melibiose, sucrose, D-xylose,
raffinose, mannitol, galactose, and trehalose.
Can utilize gluconate, D-galacturonate, succinamic acid, glucuronamide, L-alanyl glycine (weakly), hydroxy-L-proline, urocanate,
inosine, acetate (weakly), monomethyl succinate, L-arabinose, D-fructose, D-glucose, glycerol, D-mannose, melibiose, raffinose,
sucrose, D-xylose, trehalose (weakly), mannitol, D-galactose, L-proline, succinate, glutamate, and citrate.
Negative results for alginic acid hydrolysis, casein hydrolysis, DNase, esculin hydrolysis, gelatin hydrolysis, H2S production, indole
production, lysine decarboxylase, ornithine decarboxylase, starch hydrolysis, Tween-80 hydrolysis, Voges-Proskauer test, acid
production from: maltose, inositol, sorbitol and rhamnose.
No utilization of erythritol, D-galactonate acid lactone, maltose, sorbitol, rhamnose, cellobiose, inositol and N-acetyl-D-glucosamine,
gentiobiose, glycogen, L-arabitol, L-rhamnose, L-sorbose, methyl alpha-D-glucoside, methyl alpha-D-mannoside, methyl beta-D-
xylopyranoside, salicin and xylitol.
Variable results for acid phosphatase
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas psychrophila Yumoto et al. 2002.
Old synonym: Pseudomonas sp. strain E3.
Species description is based on a single isolate.
Genus Pseudomonas, Pseudomonas psychrophila Yumoto et al. 2002.
Old synonym: Pseudomonas sp. strain E3.
Species description is based on a single isolate.
Gram-negative rods, 0.5-0.9 x 1.2-2.8 µm. Motile by one polar flagellum.
Colonies are circular and colorless. A fluorescent pigment is produced on King B agar.
Growth occurs in media supplemented with 0%-4% NaCl but not in 8% NaCl. Growth
occurs at -1 to 35 ºC, but no growth is observed at 40 ºC or higher. The optimum growth
temperature of the strain was 25 ºC. Aerobic.
Growth occurs in media supplemented with 0%-4% NaCl but not in 8% NaCl. Growth
occurs at -1 to 35 ºC, but no growth is observed at 40 ºC or higher. The optimum growth
temperature of the strain was 25 ºC. Aerobic.
Isolated from a cold room for food storage, in Japan.
Undetermined.
- Yumoto I, Kusano T, Shingyo T, Nodasaka Y, Matsuyama H, Okuyama H. Assignment of Pseudomonas sp. strain E-3 to
Pseudomonas psychrophila sp. nov., a new facultatively psychrophilic bacterium. Extremophiles 2001; 5:343-349. - Ramirez-Bahena MH, Cuesta MJ, Tejedor C, Igual JM, Fernandez-Pascual M, Peix A. Pseudomonas endophytica sp. nov., isolated
from stem tissue of Solanum tuberosum L. in Spain. Int J Syst Evol Microbiol 2015; 65:2110-2117. - von Neubeck M, Huptas C, Gluck C, Krewinkel M, Stoeckel M, Stressler T, Fischer L, Hinrichs J, Scherer S, Wenning M.
Pseudomonas helleri sp. nov. and Pseudomonas weihenstephanensis sp. nov., isolated from raw cow's milk. Int J Syst Evol
Microbiol 2016; 66:1163-1173. - Lick S, Wibberg D, Winkler A, Blom J, Grimmler C, Goesmann A, Kalinowski J, Krockel L. Pseudomonas paraversuta sp. nov.
isolated from refrigerated dry-aged beef. Int J Syst Evol Microbiol 2021; 71:4822.
(c) Costin Stoica
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