| Pseudomonas baltica |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas baltica Gieschler et al. 2021.
Genus Pseudomonas, Pseudomonas baltica Gieschler et al. 2021.
Gram-negative rods, 0.9-1.3 x 2.1-3.5 µm. Weakly motile. Non-spore-forming.
Colonies are yellow, convex and circular with a diameter of 1 mm after incubation at
30 ºC for 24h on TSA. Beta-haemolysis is not produced on Columbia agar
supplemented with 5% sheep blood. Grows on R2A agar, only weakly under
anaerobic conditions but not on cetrimide agar. Pigments are produced on King A
agar, but no pigments are visible on King B agar. Grows at temperatures between
4-30 ºC (optimum 20-25 ºC), at pH values 6.0-8.0 (optimum pH 6.5-7.5) and in the
presence of 0-5% (w/v) NaCl. (optimum, 0.5-1.0%).
30 ºC for 24h on TSA. Beta-haemolysis is not produced on Columbia agar
supplemented with 5% sheep blood. Grows on R2A agar, only weakly under
anaerobic conditions but not on cetrimide agar. Pigments are produced on King A
agar, but no pigments are visible on King B agar. Grows at temperatures between
4-30 ºC (optimum 20-25 ºC), at pH values 6.0-8.0 (optimum pH 6.5-7.5) and in the
presence of 0-5% (w/v) NaCl. (optimum, 0.5-1.0%).
Isolated from raw cow's milk in Germany.
Undetermined.
- Gieschler S, Fiedler G, Bohnlein C, Grimmler C, Franz CMAP, Kabisch J. Pseudomonas kielensis sp. nov. and Pseudomonas
baltica sp. nov., isolated from raw milk in Germany. Int J Syst Evol Microbiol 2019; 71:0.
Positive results for arginine dihydrolase, catalase, citrate utilization and denitrification.
Can utilize as sole carbon source: glycerin, L-arabinose, D-ribose, D-xylose, D-galactose, D-glucose, D-fructose, D-mannose,
D-mannitol, D-sorbitol, melibiose, D-gentiobiose and D-fucose. Weak utilization of: L-rhamnose, L-xylose and D-arabitol.
Negative results for beta-galactosidase, gelatin hydrolysis, H2S production, indole production, oxidase, starch hydrolysis, tryptophan
deaminase and urease.
No utilization of: D-adonitol, aesculin, starch, L-arabitol, D-arabinose, arbutin, amygdalin, cellobiose, dulcitol, erythritol, L-fucose,
glycogen, methyl alpha-D-glucoside, inulin, inositol, maltose, methyl alpha-D-mannoside, melezitose, N-acetylglucosamine,
potassium-gluconate, 2- and 5-ketogluconate, raffinose, salicin, L-sorbose, sucrose, trehalose, D-tagatose, turanose, xylitol and
methyl beta-D-xylopyranose.
Variable results for lysine decarboxylase (2/3), ornithine decarboxylase (1/3) and Voges-Proskauer reaction (2/3).
Can utilize as sole carbon source: glycerin, L-arabinose, D-ribose, D-xylose, D-galactose, D-glucose, D-fructose, D-mannose,
D-mannitol, D-sorbitol, melibiose, D-gentiobiose and D-fucose. Weak utilization of: L-rhamnose, L-xylose and D-arabitol.
Negative results for beta-galactosidase, gelatin hydrolysis, H2S production, indole production, oxidase, starch hydrolysis, tryptophan
deaminase and urease.
No utilization of: D-adonitol, aesculin, starch, L-arabitol, D-arabinose, arbutin, amygdalin, cellobiose, dulcitol, erythritol, L-fucose,
glycogen, methyl alpha-D-glucoside, inulin, inositol, maltose, methyl alpha-D-mannoside, melezitose, N-acetylglucosamine,
potassium-gluconate, 2- and 5-ketogluconate, raffinose, salicin, L-sorbose, sucrose, trehalose, D-tagatose, turanose, xylitol and
methyl beta-D-xylopyranose.
Variable results for lysine decarboxylase (2/3), ornithine decarboxylase (1/3) and Voges-Proskauer reaction (2/3).
(c) Costin Stoica
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