Cedecea Grimont et al. 1981
General information
Description and emendation
The genus Cedecea is composed of motile, non-encapsulated, gram-negative rods that conform to the definition of the family Enterobacteriaceae. The Voges-Proskauer and o-nitrophenyl-β-Dgalactopyranoside tests are positive. Lysine is not decarboxylated, and indole, H2S, urease, and phenylalanine deaminase are not produced. Lipase is produced, but gelatinase, deoxyribonuclease, chitinase, amylase, and polygalacturonase are not. Gas is formed from the fermentation of glucose. Acid is produced from D-arabitol, Dcellobiose, maltose, D-mannitol, mannose, salicin, and trehalose but not from adonitol, Larabinose, dulcitol, or L-rhamnose. Esculin is hydrolyzed. Resistance to colistin, polymyxin, and cephalothin is common. The G+C content to the DNA is about 48 to 52 mol%. The type species is C. davisae. C. davisae and C. lapagei can be differentiated easily by ornithine decarboxylase and ascorbate tests and by acid production from D-xylose and sucrose (positive for C. davisae), production of β-xylosidase (positive for most C. davisae strains), and the specific thiamine requirement for growth of C. davisae. The clinical significance of Cedecea spp. is not yet known.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
M022506080203001 | Cedecea davisae | Species | 158484 |
M022506080203002 | Cedecea lapagei | Species | 158823 |
M022506080203003 | Cedecea neteri | Species | 158822 |