Corynebacterium singulare
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Corynebacterinae, Family
Corynebacteriaceae, Genus Corynebacterium, Corynebacterium singulare Riegel, Ruimy, Renaud, Freney, Prevost, Jehl, Christen
and Monteil 1997.
Historical synonyms: Corynebacterium minutissimum Sarkany et al. 1962.
Gram-positive irregular rods, arranged in typical V-shaped forms and palisades.
Nonspore-forming. Nonmotile.
Colonies are grayish, slightly convex with entire margins, 1-2 mm in diameter, smooth
after 24 h at 37 ºC on sheep blood agar. Nonhaemolytic. Facultatively anaerobic.
It is infrequently found in clinical specimens (human semen).
Undetermined.
- Riegel P., Ruimy R., Renaud F.N.R., Freney J., Prevost G., Jehl F., Christen R. and Monteil H., 1997. Corynebacterium singulare
sp. nov., a New Species for Urease-Positive Strains Related to Corynebacterium minutissimum. IJSB Vol. 47, No. 4, 1092-1096.
- Funke G., 2006. Corynebacteria and rare coryneforms. In: Topley & Wilson’s Microbiology & Microbial Infections, 10th Edition,
Edited by Borriello S.P., Murray P.R. and Funke G., Edward Arnold (Publishers) Ltd., Bacteriology, volume 2.
Fermentative metabolism. Not acid fast. Most results are based on API CORYNE.
Positive results for alkaline phosphatase, catalase, pyrazinamidase, tyrosine
hydrolysis, urease, acid production from: glucose, maltose & sucrose.
Negative results for esculin hydrolysis, gelatin hydrolysis, beta-galactosidase, beta-glucuronidase, alpha-glucosidase, lipophilism,
nitrate reduction, oxidase, acid production from: glycogen, lactose, mannitol, ribose, trehalose & xylose.
(c) Costin Stoica