| Pseudomonas dryadis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas dryadis Bueno-Gonzalez et al. 2019.
Genus Pseudomonas, Pseudomonas dryadis Bueno-Gonzalez et al. 2019.
Gram-negative, slightly curved rods, 2.3 x 0.4 µm. Motile by a polar flagellum.
Non-spore-forming..
Non-spore-forming..
Colonies on KB agar are cream-coloured, circular and convex, with entire margins
and measure 2 mm in diameter after 48 h of incubation at 25 ºC. Produce fluorescent
pigment. Growth is optimum at 28 ºC and pH 6.0-8.0, but strains can grow up to 39
ºC, while weak growth occurs at 4 to 10 ºC. Growth occurs in the pH range 6.0 to 8.0,
and on 3.5% (w/v) NaCl supplemented TSA plates. Strictly aerobic.
and measure 2 mm in diameter after 48 h of incubation at 25 ºC. Produce fluorescent
pigment. Growth is optimum at 28 ºC and pH 6.0-8.0, but strains can grow up to 39
ºC, while weak growth occurs at 4 to 10 ºC. Growth occurs in the pH range 6.0 to 8.0,
and on 3.5% (w/v) NaCl supplemented TSA plates. Strictly aerobic.
Isolated from inner bark and beetle galleries in the phloem of Quercus robur in the UK.
Undetermined.
- Bueno-Gonzalez V, Brady C, Denman S, Plummer S, Allainguillaume J, Arnold D. Pseudomonas daroniae sp. nov. and
Pseudomonas dryadis sp. nov., isolated from pedunculate oak affected by acute oak decline in the UK. Int J Syst Evol Microbiol
2019; 69:3368-3376.
Description is based mostly on API 20 NE, API 50 CHB/E and Biolog GN2 MicroPlate results.
Positive results for catalase, oxidase, acid production (API 50 CHB/E) from: glycerol, D-glucose, D-fructose, D-mannose, D-mannitol,
and weakly from D-lyxose, D-fucose and D-arabitol.
Can assimilate (API 20 NE): D-glucose, D-mannose, D-mannitol, potassium gluconate, caprate, malate and citrate.
Can utilize (Biolog GN2): D- and L-alanine (weakly), L-arabinose, D-arabitol, alpha-D-glucose, D-mannitol, pyruvic acid methyl ester,
succinic acid monomethyl ester, acetic acid, cis-aconitic acid, citric acid, gamma-hydroxybutyric acid, itaconic acid, alpha-ketoglutaric
acid, D,L-lactic acid, quinic acid, succinic acid, bromosuccinic acid, L-aspartic acid, L-glutamic acid, hydroxy-L-proline, L-proline,
gamma-aminobutyric acid and glycerol.
Negative results for arginine dihydrolase, beta-galactosidase, beta-glucosidase, gelatinase, indole production, nitrate reduction to
NO2 and urease.
No assimilation of L-arabinose, N-acetyl-glucosamine, maltose, adipate and phenylacetate.
No utilization of alpha-cyclodextrin, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, adonitol, cellobiose, i-erythritol, L-fucose,
gentiobiose, m-inositol, lactose, lactulose, maltose, melibiose, raffinose, L-rhamnose, D-sorbitol, xylitol, D-glucosaminic acid,
p-hydroxy-phenylacetic acid, sebacic acid, glycyl-L-aspartic acid, L-histidine, L-leucine, L-ornithine, L-phenylalanine, D-serine,
inosine, uridine, thymidine, phenylethylamine, alpha-D-glucose-1-phosphate, D-galactose, sucrose, trehalose, D-galacturonic acid,
D-gluconic acid, D-glucuronic acid, malonic acid and urocanic acid.
Variable results for acid production from D-glucose and utilization of: dextrin, glycogen, Tween 40, Tween 80, D-fructose, D-galactose,
D-mannose, turanose, formic acid, alpha-hydroxybutyric acid, beta-hydroxybutyric acid, alpha-ketobutyric acid, propionic acid,
succinamic acid, L-aspargine, L-pyroglutamic acid, L-serine, 2-aminoethanol and 2,3-butanediol.
Positive results for catalase, oxidase, acid production (API 50 CHB/E) from: glycerol, D-glucose, D-fructose, D-mannose, D-mannitol,
and weakly from D-lyxose, D-fucose and D-arabitol.
Can assimilate (API 20 NE): D-glucose, D-mannose, D-mannitol, potassium gluconate, caprate, malate and citrate.
Can utilize (Biolog GN2): D- and L-alanine (weakly), L-arabinose, D-arabitol, alpha-D-glucose, D-mannitol, pyruvic acid methyl ester,
succinic acid monomethyl ester, acetic acid, cis-aconitic acid, citric acid, gamma-hydroxybutyric acid, itaconic acid, alpha-ketoglutaric
acid, D,L-lactic acid, quinic acid, succinic acid, bromosuccinic acid, L-aspartic acid, L-glutamic acid, hydroxy-L-proline, L-proline,
gamma-aminobutyric acid and glycerol.
Negative results for arginine dihydrolase, beta-galactosidase, beta-glucosidase, gelatinase, indole production, nitrate reduction to
NO2 and urease.
No assimilation of L-arabinose, N-acetyl-glucosamine, maltose, adipate and phenylacetate.
No utilization of alpha-cyclodextrin, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, adonitol, cellobiose, i-erythritol, L-fucose,
gentiobiose, m-inositol, lactose, lactulose, maltose, melibiose, raffinose, L-rhamnose, D-sorbitol, xylitol, D-glucosaminic acid,
p-hydroxy-phenylacetic acid, sebacic acid, glycyl-L-aspartic acid, L-histidine, L-leucine, L-ornithine, L-phenylalanine, D-serine,
inosine, uridine, thymidine, phenylethylamine, alpha-D-glucose-1-phosphate, D-galactose, sucrose, trehalose, D-galacturonic acid,
D-gluconic acid, D-glucuronic acid, malonic acid and urocanic acid.
Variable results for acid production from D-glucose and utilization of: dextrin, glycogen, Tween 40, Tween 80, D-fructose, D-galactose,
D-mannose, turanose, formic acid, alpha-hydroxybutyric acid, beta-hydroxybutyric acid, alpha-ketobutyric acid, propionic acid,
succinamic acid, L-aspargine, L-pyroglutamic acid, L-serine, 2-aminoethanol and 2,3-butanediol.
(c) Costin Stoica
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