Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Stutzerimonas, Stutzerimonas kirkiae (Bueno-Gonzalez et al. 2020) Gomila et al. 2022.
Synonym: Pseudomonas kirkiae Bueno-Gonzalez et al. 2020.
Gram-negative, slightly curved rods,1.5 µm x 0.4 µm. Motile by amphitrichous flagella.
Non-spore forming.
Colonies are fluorescent, cream-coloured, circular and convex, with entire margins
and 1 mm in diameter after 48 h of incubation at 25 ºC on KB agar. Optimum growth
occurs at 28 ºC and pH 6.0-8.0, all strains grow from 4-10 ºC to 39 ºC. Strictly aerobic.
Isolated from the inner bark and sapwood of symptomatic oak (Quercus robur), Agrilus biguttatus larval galleries in the phloem, as
well as non-symptomatic sapwood.
Undetermined.
- Bueno-Gonzalez V, Brady C, Denman S, Allainguillaume J, Arnold D. Pseudomonas kirkiae sp. nov., a novel species isolated from
oak in the United Kingdom, and phylogenetic considerations of the genera Pseudomonas, Azotobacter and Azomonas. Int J Syst
Evol Microbiol 2020; 70:2426-2434.
- Gomila M, Mulet M, Garcia-Valdes E, Lalucat J. Genome-Based Taxonomy of the Genus Stutzerimonas and Proposal of S. frequens
sp. nov. and S. degradans sp. nov. and Emended Descriptions of S. perfectomarina and S. chloritidismutans. Microorganisms 2022;
10:0.
Positive results for catalase and oxidase.
Can assimilate (API 20 NE): caprate and malate
Can utilize (Biolog GN2): 2-aminoethanol, Tween 80, L-arabinose, pyruvic acid methyl ester, succinic acid mono-methyl ester, acetic
acid, alpha-hydroxybutyric acid, alpha-ketobutyric acid, alpha-ketoglutaric acid, D,L-lactic acid, propionic acid, succinic acid,
bromosuccinic acid, succinamic acid, L-alaninamide, D- and L-alanine, L-aspargine, L-aspartic acid, L-glutamic acid, L-proline and
2-aminoethanol.
Negative results for arginine dihydrolase, beta-glucosidase, gelatinase, beta-galactosidase, indole production, nitrate reduction,
urease, acid production from all API 50 CH substrates, except 5-ketogluconate (weak).
No assimilation of adipate, D-mannitol, maltose, N-acetylglucosamine, potassium gluconate, phenylacetate and citrate.
No utilization of: alpha-cyclodextrin, dextrin, glycogen, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine, adonitol, L-arabinose,
D-arabitol, D-cellobiose, i-erythritol, D-fructose, L-fucose, D-galactose, gentiobiose alpha-D-glucose, m-inositol, alpha-D-lactose,
lactulose, maltose, D-mannitol, D-mannose, D-melibiose, beta-methyl-D-glucoside, D-psicose, D-raffinose, L-rhamnose, D-sorbitol,
sucrose, D-trehalose, turanose, xylitol, cis-aconitic acid, citric acid, formic acid, D-galactonic acid lactone, D-galacturonic acid,
D-gluconic acid, D-glucosaminic acid, D-glucuronic acid, beta-hydroxybutyric acid, gamma-hydroxybutyric acid, p-hydroxy-phenylacetic
acid, itaconic acid, alpha -ketovaleric acid, malonic acid, quinic acid, D-saccharic acid, sebacic acid, glucuronamide, L-alanyl-glycine,
glycyl L-aspartic acid, glycyl L-glutamic acid, L-histidine, hydroxy L-proline, L-leucine, L-ornithine, L-phenylalanine, L-pyroglutamic acid,
L-serine, L-threonine, D,L-carnitine, gamma-aminobutyric acid, urocanic acid, inosine, uridine, thymidine, phenyethylamine, putrescine,
2,3 -butanediol, glycerol, D,L, alpha -glycerol phosphate, alpha-D-glucose 1-phosphate and D-glucose-6-phosphate.
Variable fermentation of L-arabinose, D-ribose, D-galactose and lactose.
Variable utilization of D-serine, gamma-aminobutyric acid, dextrin, glycogen, Tween 40 and citric acid.

(c) Costin Stoica