Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
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.
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.
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.
(c) Costin Stoica