| Pseudomonas iridis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas iridis Duman et al. 2021.
Genus Pseudomonas, Pseudomonas iridis Duman et al. 2021.
Gram-negative rods, 0.9-1.1 x 3.1-3.7 µm. Motile by one polar flagellum.
Non-spore-forming.
Non-spore-forming.
Colonies grown on Luria-Bertani medium for 48 h at 30 ºC are round, flat, opaque and
beige coloured, with regular margins and translucent margins and approximately 3-6
mm in diameter. Produce fluorescent pigment on King’s B agar. Pigment is not
produced on King A agar. Grows at temperatures between 4-37 ºC (optimum 30 ºC),
at pH 7.0-9.0 and in the presence of 0-9% (w/v) NaCl. Aerobic.
beige coloured, with regular margins and translucent margins and approximately 3-6
mm in diameter. Produce fluorescent pigment on King’s B agar. Pigment is not
produced on King A agar. Grows at temperatures between 4-37 ºC (optimum 30 ºC),
at pH 7.0-9.0 and in the presence of 0-9% (w/v) NaCl. Aerobic.
Isolated from the abdominal cavity of asymptomatic and symptomatic rainbow trouts (Onchorhynchus mykiss), Turkey.
Undetermined.
- Duman M, Mulet M, Altun S, Burcin Saticioglu I, Gomila M, Lalucat J, Garcia-Valdes E. Pseudomonas anatoliensis sp. nov and
Pseudomonas iridis sp. nov. isolated from fish. Syst Appl Microbiol 2021; 44:126198.
Positive results for catalase and oxidase.
Can assimilate (API 20NE): D-glucose, L-arabinose, mannose, mannitol, gluconate, caprate, malate and citrate.
Can utilize as sole carbon source (Biolog GEN III system): D-fucose, trehalose, alpha-D-glucose, D-mannose, D-mannitol,
D-galacturonic acid, gamma-amino-butyric acid, D-fructose, D-arabitol, L-alanine, D-galactose, L-arginine, D-gluconic acid, L-lactic
acid, beta-hydroxy-D,L-butyric acid, glucuronamide, glycogen, L-aspartic acid, D-glucuronic acid, citric acid, N-acetyl-D-glucosamine,
L-glutamic acid, alpha-ketoglutaric acid, L-histidine, mucic acid, propionic acid, L-pyroglutamic acid, quinic acid, L-malic acid, acetic
acid, inosine, L-serine and D-saccharic acid.
Negative results for beta-galactosidase, nitrate reduction, urease and acid production from glucose.
No assimilation of maltose and adipate.
No utilization of: D-raffinose, D-sorbitol, gelatin, pectin, p-hydroxy-phenylacetic acid, dextrin, alpha-D-lactose, glycyl-L-proline,
D-maltose, D-melibiose, D-lactic acid methyl ester, beta-methyl-D-glucoside, myo-inositol, D-cellobiose, D-salicin, 3-methyl glucose,
alpha-hydroxy butyric acid, alpha-ketobutyric acid, gentiobiose, D-glucose-6-phosphate, acetoacetic acid, sucrose,
N-acetyl-beta-D-mannosamine, L-fucose, D-fructose-6-phosphate, turanose, N-acetyl-D-galactosamine, L-rhamnose, D-aspartic
acid, stachyose, N-acetyl-neuraminic acid.
Variable results for arginine dihydrolase, aesculin hydrolysis, gelatinase, indole production, assimilation of N-acetyl-D-glucosamine
and phenylacetate.
Variable utilization of: D-malic acid, D-serine, bromo-succinic acid, formic acid and sodium butyrate
Can assimilate (API 20NE): D-glucose, L-arabinose, mannose, mannitol, gluconate, caprate, malate and citrate.
Can utilize as sole carbon source (Biolog GEN III system): D-fucose, trehalose, alpha-D-glucose, D-mannose, D-mannitol,
D-galacturonic acid, gamma-amino-butyric acid, D-fructose, D-arabitol, L-alanine, D-galactose, L-arginine, D-gluconic acid, L-lactic
acid, beta-hydroxy-D,L-butyric acid, glucuronamide, glycogen, L-aspartic acid, D-glucuronic acid, citric acid, N-acetyl-D-glucosamine,
L-glutamic acid, alpha-ketoglutaric acid, L-histidine, mucic acid, propionic acid, L-pyroglutamic acid, quinic acid, L-malic acid, acetic
acid, inosine, L-serine and D-saccharic acid.
Negative results for beta-galactosidase, nitrate reduction, urease and acid production from glucose.
No assimilation of maltose and adipate.
No utilization of: D-raffinose, D-sorbitol, gelatin, pectin, p-hydroxy-phenylacetic acid, dextrin, alpha-D-lactose, glycyl-L-proline,
D-maltose, D-melibiose, D-lactic acid methyl ester, beta-methyl-D-glucoside, myo-inositol, D-cellobiose, D-salicin, 3-methyl glucose,
alpha-hydroxy butyric acid, alpha-ketobutyric acid, gentiobiose, D-glucose-6-phosphate, acetoacetic acid, sucrose,
N-acetyl-beta-D-mannosamine, L-fucose, D-fructose-6-phosphate, turanose, N-acetyl-D-galactosamine, L-rhamnose, D-aspartic
acid, stachyose, N-acetyl-neuraminic acid.
Variable results for arginine dihydrolase, aesculin hydrolysis, gelatinase, indole production, assimilation of N-acetyl-D-glucosamine
and phenylacetate.
Variable utilization of: D-malic acid, D-serine, bromo-succinic acid, formic acid and sodium butyrate
(c) Costin Stoica
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