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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
Pseudomonas mendocina Palleroni 1970.
Pseudomonas mendocina Palleroni 1970.
Gram-negative, 0.7-0.8 x 1.4-2.8 μm, motile rods. Lateral flagella of short wavelength
may be produced on solid media.
may be produced on solid media.
Cultures produce intracellular yellow pigments (yellowish colonies).
Strictly aerobic, optimal temperature 35 ºC. Growth at 41 ºC; no growth at 4 ºC.
Organic growth factors not required. Grows on media: Nutritive agar, Trypticase Soy
Agar, Mac Conkey agar, SS agar.
Strictly aerobic, optimal temperature 35 ºC. Growth at 41 ºC; no growth at 4 ºC.
Organic growth factors not required. Grows on media: Nutritive agar, Trypticase Soy
Agar, Mac Conkey agar, SS agar.
Isolated from soil, water, rarely from clinical samples.
Opportunistic pathogen (rare nosocomial infections).
- Bergey’s Manual of Determinative Bacteriology, 9th ed., 1994.
- Palleroni N.J, Doudoroff M., Stanier R.Y., Solanes R.E. & Mandel M.: Taxonomy of the aerobic pseudomonads, the properties of the
Pseudomonas stutzeri group. Journal of General Microbiology, 1970, 60, 215-231. - Yoon-Dong Park, Hana Yi, Keun Sik Baik, Chi Nam Seong, Kyung Sook Bae, Eun Young Moon, and Jongsik Chun: Pseudomonas
segetis sp. nov., isolated from soil. Int J Syst Evol Microbiol November 2006 56:2593-2595. - Xin, Yu-Hua, Zhang, De-Chao, Liu, Hong-Can, Zhou, Hui-Ling, Zhou, Yu-Guang Pseudomonas tuomuerensis sp. nov., isolated
from a bird's nest. Int J Syst Evol Microbiol 2009 59: 139-143.
Positive results for acetoin production, arginine dihydrolase, catalase, nitrate reduction, oxidase.
Can utilize: caprate, citrate, malate, gluconate, arginine, geraniol, ethylene glycol, propylene glycol, ethanol, L-tartrate, D- and L-lactic
acid, acetic acid, malonic acid, propionic acid, L-histidine & L-serine.
Negative results for alkaline phosphatase, acid phosphatase, egg yolk reaction, H2S production, beta-galactosidase, indole
production, urease, lysine decarboxylase, ornithine decarboxylase, gelatin & starch hydrolysis. Cannot utilize pentoses & hexoses
other than glucose & fructose. No assimilation of N-acetylglucosamine, maltose, adipate, D-arabitol & glycerol.
Can utilize: caprate, citrate, malate, gluconate, arginine, geraniol, ethylene glycol, propylene glycol, ethanol, L-tartrate, D- and L-lactic
acid, acetic acid, malonic acid, propionic acid, L-histidine & L-serine.
Negative results for alkaline phosphatase, acid phosphatase, egg yolk reaction, H2S production, beta-galactosidase, indole
production, urease, lysine decarboxylase, ornithine decarboxylase, gelatin & starch hydrolysis. Cannot utilize pentoses & hexoses
other than glucose & fructose. No assimilation of N-acetylglucosamine, maltose, adipate, D-arabitol & glycerol.
(c) Costin Stoica
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