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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Bacteria => Proteobacteria => Gammaproteobacteria => Pseudomonadales => Pseudomonadaceae => Pseudomonas =>
Pseudomonas extremorientalis Ivanova et al. 2002.
Pseudomonas extremorientalis Ivanova et al. 2002.
Gram negative, 0.8-1 x 2.0-3.5 μm, motile rods, with a single polar flagellum.
Hemolytic, round, 3-6 mm, circular, regular, convex, smooth colonies. Fluorescent
pigment produced.Strictly aerobic, optimal temperature 30 ºC. No growth at 42 ºC.
Media: Nutritive agar, Trypticase Soy Agar, Mueller-Hinton agar, King’s B medium.
pigment produced.Strictly aerobic, optimal temperature 30 ºC. No growth at 42 ºC.
Media: Nutritive agar, Trypticase Soy Agar, Mueller-Hinton agar, King’s B medium.
Isolated from a drinking water reservoir.
Unknown (none).
- Elena P. Ivanova et al.: Pseudomonas extremorientalis sp. nov., isolated from a drinking water reservoir. International
Journal of Systematic and Evolutionary Microbiology (2002), 52, 2113–2120.
Produce caseinase and lecithinase. Positive for oxidase, catalase and arginine
dihydrolase.
Oxidizes dextrin, glycogen, Tween 40, Tween 80, N-acetyl-d-glucosamine, adonitol,
L-arabinose, D-arabitol, cellobiose, D-fructose, D-galactose, alpha-lactose, lactulose,
maltose, D-mannitol, D-mannose, D-methyl glucoside, sorbitol, sucrose, D-trehalose,
tyranose, xylitol, methyl pyruvate, mono-methyl succinate, acetic acid, cisaconitic acid,
citric acid, formic acid, D-galactonic acid D-galacturonic acid, D-gluconic acid, D-
glucosaminic acid, D-glucuronic acid, alpha-hydroxybutyric acid, beta-hydroxybutyric acid,
gamma-hydroxybutyric acid, itaconic acid, 2-oxobutyric acid, 2-oxoglutaric acid, 2-oxovaleric acid, DL-lactic acid, malonic acid,
propionic acid, quinic acid, D-saccharic acid, sebacic acid, succinic acid, bromosuccinic acid, succinamic acid, glucuronamide,
alaninamide, D-alanine, L-alanine, L-alanyl-glycine, L-asparagine, L-aspartic acid, L-glutamic acid, L-histidine, L-leucine, L-proline,
L-pyroglutamic acid, D-serine, L-serine, L-threonine, DL-camitine, caminobutyric acid, urocanic acid, inosine, uridine, thymidine, 2-
aminoethanol, glycerol, alpha-DL-glycerol phosphate, glucose 1-phosphate.
Do not assimilate m-inositol, D-glucose, melibiose, lactose, adonitol & rhamnose.
Negative for lipase, gelatinase & amylase production. Do not accumulate poli-β-hydroxybutyrate as intracellular carbon reserve.
dihydrolase.
Oxidizes dextrin, glycogen, Tween 40, Tween 80, N-acetyl-d-glucosamine, adonitol,
L-arabinose, D-arabitol, cellobiose, D-fructose, D-galactose, alpha-lactose, lactulose,
maltose, D-mannitol, D-mannose, D-methyl glucoside, sorbitol, sucrose, D-trehalose,
tyranose, xylitol, methyl pyruvate, mono-methyl succinate, acetic acid, cisaconitic acid,
citric acid, formic acid, D-galactonic acid D-galacturonic acid, D-gluconic acid, D-
glucosaminic acid, D-glucuronic acid, alpha-hydroxybutyric acid, beta-hydroxybutyric acid,
gamma-hydroxybutyric acid, itaconic acid, 2-oxobutyric acid, 2-oxoglutaric acid, 2-oxovaleric acid, DL-lactic acid, malonic acid,
propionic acid, quinic acid, D-saccharic acid, sebacic acid, succinic acid, bromosuccinic acid, succinamic acid, glucuronamide,
alaninamide, D-alanine, L-alanine, L-alanyl-glycine, L-asparagine, L-aspartic acid, L-glutamic acid, L-histidine, L-leucine, L-proline,
L-pyroglutamic acid, D-serine, L-serine, L-threonine, DL-camitine, caminobutyric acid, urocanic acid, inosine, uridine, thymidine, 2-
aminoethanol, glycerol, alpha-DL-glycerol phosphate, glucose 1-phosphate.
Do not assimilate m-inositol, D-glucose, melibiose, lactose, adonitol & rhamnose.
Negative for lipase, gelatinase & amylase production. Do not accumulate poli-β-hydroxybutyrate as intracellular carbon reserve.
(c) Costin Stoica
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