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Genus of bacteria / From Wikipedia, the free encyclopedia

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Escherichia (/ˌɛʃəˈrɪkiə/) is a genus of Gram-negative, non-spore-forming, facultatively anaerobic, rod-shaped bacteria from the family Enterobacteriaceae.[4] 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.[5] 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.[4] Escherichia are usually motile by flagella, produce gas from fermentable carbohydrates, and do not decarboxylate lysine or hydrolyze arginine.[6] Species include E. albertii, E. fergusonii, E. hermannii, E. ruysiae, E. marmotae and most notably, the model organism and clinically relevant E. coli. Shimwellia blattae [7] and Pseudescherichia vulneris were formerly classified in this genus.

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

E. albertii
E. coli
E. fergusonii
E. hermannii
E. ruysiae[2]
E. marmotae[3]