| Comamonas testosteroni |
|
Differential characters of C. testosteroni, C. terrigena, C. aquatica and C. kerstersii:
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Betaproteobacteria, Order Burkholderiales, Family Comamonadaceae, Genus
Comamonas, Comamonas testosteroni (Marcus and Talalay 1956) Tamaoka et al. 1987 emend. Willems et al. 1991.
Old synonym: Pseudomonas testosteroni Marcus and Talalay 1956.
Comamonas, Comamonas testosteroni (Marcus and Talalay 1956) Tamaoka et al. 1987 emend. Willems et al. 1991.
Old synonym: Pseudomonas testosteroni Marcus and Talalay 1956.
Gram-negative rods with polar flagella, 0.7-0.8 by 2.1-2.9 μm .
Obligately aerobic, 30 ºC (no growth at 4 or 41 ºC). No pigments are produced.
Can grow onTrypticase Soy Agar ± 5% sheep blood, Trypticase Soy Broth,
Mueller-Hinton agar, Mac Conkey agar
Can grow onTrypticase Soy Agar ± 5% sheep blood, Trypticase Soy Broth,
Mueller-Hinton agar, Mac Conkey agar
Isolated from soil, rarely from clinical specimens.
Generally non-pathogenic bacteria. One case of human purulent meningitis, one case of bacteremia due to a perforated appendicitis.
Sometimes isolated from animal specimens with doubtful clinical implication (admin note).
Sometimes isolated from animal specimens with doubtful clinical implication (admin note).
- R.E. Buchanan & N.E. Gibbons (co-editors): Bergey’s Manual of Determinative Bacteriology, eighth edition, 232.
- Marcus P.I. & Talalay P.: Induction and purification of α- and β-hydroxysteroid dehydrogenases. Journal of Biological Chemistry,
1956, 218, 661-674. - Tamaoka J., Ha D.M. & Komagata K.: Reclassification of Pseudomonas acidovorans den Dooren de Jong 1926 and
Pseudomonas testosteroni Marcus and Talalay 1956 as Comamonas acidovorans comb. nov. and Comamonas testosteroni
comb. nov., with an emended description of the genus Comamonas. Int. J. Syst. Bacteriol., 1987, 37, 52-59. - Willems A., Pot B., Falsen E., Vandamme P., Gillis M., Kersters K. & De Ley J.: Polyphasic taxonomic study of the emended genus
Comamonas: relationship to Aquaspirillum aquaticum, E. Falsen group 10, and other clinical isolates. Int. J. Syst. Bacteriol., 1991,
41, 427-444. - Arda B, Aydemir S, Yamazhan T, Hassan A, Tunger A, Serter D. Comamonas testosteroni meningitis in a patient with recurrent
cholesteatoma. APMIS 2003;111:474-6. - Gul Mustafa et al. Comamonas testosteroni bacteremia in a patient with perforated acute appendicitis. Short communication. Acta
microbiologica et immunologica Hungarica 2007;54(3):317-21. - Wauters (G.), De Baere (T.), Willems (A.), Falsen (E.) and Vaneechoutte (M.): Description of Comamonas aquatica comb. nov. and
Comamonas kerstersii sp. nov. for two subgroups of Comamonas terrigena and emended description of Comamonas terrigena.
Int. J. Syst. Evol. Microbiol., 2003, 53, 859-862. - Willems, A., Pot, B., Falsen, E., Vandamme, P., Gillis, M., Kersters, K., & De Ley, J. (1991). Polyphasic taxonomic study of the
emended genus Comamonas: relationship to Aquaspirillum aquaticum, E. Falsen group 10, and other clinical isolates.
International Journal of Systematic and Evolutionary Microbiology, 41(3), 427-444.
Can utilize for growth: testosterone, acetate, glycerol, gluconate, glycine, D-alanine,
L-alanine , itaconate, malate, L-valine, DL-norvaline, L-leucine, L-isoleucine,
L-norleucine, L-threonine, L-phenylalanine, L-tyrosine, L-histidine, L-tryptophan,
L-aspartate, fumarate
Negative results for alkaline phosphatase, esculin hydrolysis, gelatin hydrolysis, H2S production, indole production, nitrates reduction,
lysine decarboxylase, ornithine decarboxylase, ONPG, oxidase & starch hydrolysis.
Cannot utilize galactose, glucose, m-erythritol, D-fructose, L-fucose, D-tagatose, m-inositol, D-mannitol, 2- and 5-ketogluconate,
amygdalin, beta-alanine, DL-2-aminobutyrate, maleate, malonate, DL-norleucine, L-serine, L-methionine, D-tryptophan & L-arginine.
Nitrates reduction is variable, but nitrites reduction is negative.
L-alanine , itaconate, malate, L-valine, DL-norvaline, L-leucine, L-isoleucine,
L-norleucine, L-threonine, L-phenylalanine, L-tyrosine, L-histidine, L-tryptophan,
L-aspartate, fumarate
Negative results for alkaline phosphatase, esculin hydrolysis, gelatin hydrolysis, H2S production, indole production, nitrates reduction,
lysine decarboxylase, ornithine decarboxylase, ONPG, oxidase & starch hydrolysis.
Cannot utilize galactose, glucose, m-erythritol, D-fructose, L-fucose, D-tagatose, m-inositol, D-mannitol, 2- and 5-ketogluconate,
amygdalin, beta-alanine, DL-2-aminobutyrate, maleate, malonate, DL-norleucine, L-serine, L-methionine, D-tryptophan & L-arginine.
Nitrates reduction is variable, but nitrites reduction is negative.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
| Back |