Our website is made possible by displaying online advertisements to our visitors.
Please consider supporting us by disabling your ad blocker.

Responsive image


Escherichia

Escherichia
SEM micrograph of cluster of Escherichia coli bacteria. Each individual bacterium is oblong.
Scientific classification Edit this classification
Domain: Bacteria
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Enterobacterales
Family: Enterobacteriaceae
Genus: Escherichia
Castellani & Chalmers 1919[1]
Type species
Escherichia coli
(Escherich, 1886)
Species

E. albertii
E. coli
E. fergusonii
E. hermannii
E. ruysiae[2]
E. marmotae[2]

Escherichia (/ˌɛʃəˈrɪkiə/ ESH-ə-RIK-ee-ə) is a genus of Gram-negative, non-spore-forming, facultatively anaerobic, rod-shaped bacteria from the family Enterobacteriaceae.[3] In those species which are inhabitants of the gastrointestinal tracts of warm-blooded animals, Escherichia species provide a portion of the microbially derived vitamin K for their host. A number of the species of Escherichia are pathogenic.[4] The genus is named after Theodor Escherich, the discoverer of Escherichia coli. Escherichia are facultative aerobes, with both aerobic and anaerobic growth, and an optimum temperature of 37 °C.[3] Escherichia are usually motile by flagella, produce gas from fermentable carbohydrates, and do not decarboxylate lysine or hydrolyze arginine.[5] Species include E. albertii, E. fergusonii, E. hermannii, E. ruysiae, E. marmotae and most notably, the model organism and clinically relevant E. coli. Formerly, Shimwellia blattae[6] and Pseudescherichia vulneris were also classified in this genus.

  1. ^ Cite error: The named reference Castellani et al., 1919 was invoked but never defined (see the help page).
  2. ^ a b Parte, A.C. "Escherichia". LPSN.
  3. ^ a b Madigan M; Martinko J, eds. (2005). Brock Biology of Microorganisms (11th ed.). Prentice Hall. ISBN 0-13-144329-1.
  4. ^ C.Michael Hogan. 2010. Bacteria. Encyclopedia of Earth. eds. Sidney Draggan and C.J.Cleveland, National Council for Science and the Environment, Washington DC Archived May 11, 2011, at the Wayback Machine
  5. ^ Leung, J. M.; Gallant, C. V. (2014-01-01), "Infections due to Escherichia and Shigella☆", Reference Module in Biomedical Sciences, Elsevier, ISBN 978-0-12-801238-3, retrieved 2020-08-21
  6. ^ Priest, F. G.; Barker, M. (6 August 2009). "Gram-negative bacteria associated with brewery yeasts: reclassification of Obesumbacterium proteus biogroup 2 as Shimwellia pseudoproteus gen. nov., sp. nov., and transfer of Escherichia blattae to Shimwellia blattae comb. nov". International Journal of Systematic and Evolutionary Microbiology. 60 (4): 828–833. doi:10.1099/ijs.0.013458-0. PMID 19661513.

Previous Page Next Page






إشريكية Arabic اشريكيه ARZ Escheríchies Catalan Escherichia Czech Escherichia German Escherichia EO Escherichia Spanish Escherichia EU اشریشیا FA Escherichia French

Responsive image

Responsive image