| Pseudomonas atacamensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Pseudomonas, Pseudomonas atacamensis Poblete-Morales et al. 2021.
Species description is based on a single isolate.
Genus Pseudomonas, Pseudomonas atacamensis Poblete-Morales et al. 2021.
Species description is based on a single isolate.
Gram-negative rods, 0.9-1.2 x 1.9-2.8 µm. Motile by one polar flagellum.
Non-spore-forming.
Non-spore-forming.
Colonies grown on Luria-Bertani agar are 1-2 mm in diameter, creamy, smooth,
circular, convex and non-swarming. after growth for 3 days at 25 ºC. Produce
fluorescent pigment on King’s B agar. Haemolysis is not produced. Grows at
temperatures between 4-37 ºC (optimum 28 ºC) and in the presence of 0-4% (w/v)
NaCl. Strictly aerobic.
circular, convex and non-swarming. after growth for 3 days at 25 ºC. Produce
fluorescent pigment on King’s B agar. Haemolysis is not produced. Grows at
temperatures between 4-37 ºC (optimum 28 ºC) and in the presence of 0-4% (w/v)
NaCl. Strictly aerobic.
Isolated from the rhizosphere of a plant on the Atacama Desert during a bloom event.
Susceptible to amikacin, gentamicin, imipenem, ciprofloxacin, levofloxacin, cefepime, piperacillin-tazobactam. Intermediate for
meropenem. Resistant to cefotaxime, ceftazidime, ampicillin, and ampicillin sulbactam.
Susceptible to amikacin, gentamicin, imipenem, ciprofloxacin, levofloxacin, cefepime, piperacillin-tazobactam. Intermediate for
meropenem. Resistant to cefotaxime, ceftazidime, ampicillin, and ampicillin sulbactam.
Undetermined.
- Poblete-Morales M, Carvajal D, Almasia R, Michea S, Cantillana C, Levican A, Silva-Moreno E. Pseudomonas atacamensis sp. nov.,
isolated from the rhizosphere of desert bloom plant in the region of Atacama, Chile. Antonie Van Leeuwenhoek 2020; 113:1201-
1211.
Positive results for arginine dihydrolase, catalase, esterase (C4), esterase lipase (C8), leucine arylamidase, trypsin, acid
phosphatase, and naphthol-AS-BI-phosphohydrolase and oxidase.
Can assimilate (API 20NE): D-glucose, L-arabinose, D-mannose, D-mannitol, N-acetyl-glucosamine, potassium gluconate, capric
acid, malic acid and trisodium citrate.
Can utilize as sole carbon source: trehalose and D-galactose.
Negative results for alkaline phosphatase, cystine arylamidase, alpha-chymotrypsin, esculin hydrolysis, alpha-fucosidase,
gelatinase, alpha- and beta-galactosidase, beta-glucuronidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, H2S
production, indole production, lipase (C14), alpha-mannosidase, nitrate reduction, ornithine decarboxylase, urease, valine
arylamidase and glucose fermentation.
No assimilation of: D-maltose and phenylacetic acid.
No utilization of citrate as sole carbon source.
phosphatase, and naphthol-AS-BI-phosphohydrolase and oxidase.
Can assimilate (API 20NE): D-glucose, L-arabinose, D-mannose, D-mannitol, N-acetyl-glucosamine, potassium gluconate, capric
acid, malic acid and trisodium citrate.
Can utilize as sole carbon source: trehalose and D-galactose.
Negative results for alkaline phosphatase, cystine arylamidase, alpha-chymotrypsin, esculin hydrolysis, alpha-fucosidase,
gelatinase, alpha- and beta-galactosidase, beta-glucuronidase, alpha- and beta-glucosidase, N-acetyl-beta-glucosaminidase, H2S
production, indole production, lipase (C14), alpha-mannosidase, nitrate reduction, ornithine decarboxylase, urease, valine
arylamidase and glucose fermentation.
No assimilation of: D-maltose and phenylacetic acid.
No utilization of citrate as sole carbon source.
(c) Costin Stoica
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