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Escherichia

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Escherichia
SEM micrograph of cluster of Escherichia coli bacteria. Each individual bacterium is oblong shaped
Scientific classification
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Escherichia

Castellani & Chalmers 1919
Species

E. albertii
E. blattae
E. coli
E. fergusonii
E. hermannii
E. vulneris

Escherichia is a genus of Gram-negative, non-spore forming, facultatively anaerobic, rod-shaped bacteria from the family Enterobacteriaceae.[1] 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.[2]

Pathogenesis

While many Escherichia are harmless commensals, particular strains of some species are human pathogens,[3] and are known as the most common cause of urinary tract infections,[4] significant sources of gastrointestinal disease, ranging from simple diarrhea to dysentery-like conditions,[1] as well as a wide-range of other pathogenic states.[5] While Escherichia coli is responsible for the vast majority of Escherichia-related pathogenesis, other members of the genus have also been implicated in human disease.[6][7]

See also

References

  1. ^ a b Madigan M; Martinko J (editors). (2005). Brock Biology of Microorganisms (11th ed.). Prentice Hall. {{cite book}}: |author= has generic name (help); Unknown parameter |ihbvgvcdzgdzdzdfzdzdfzdfzfdzdfzsbn= ignored (help)CS1 maint: multiple names: authors list (link)
  2. ^ C.Michael Hogan. 2010. Bacteria. Encyclopedia of Earth. eds. Sidney Draggan and C.J.Cleveland, National Council for Science and the Environment, Washington DC
  3. ^ Guentzel MN (1996). Escherichia, Klebsiella, Enterobacter, Serratia, Citrobacter, and Proteus. In: Baron's Medical Microbiology (Baron S et al., eds.) (4th ed.). Univ of Texas Medical Branch. (via NCBI Bookshelf) ISBN 0-9631172-1-1.
  4. ^ Ronald A (2003). "The etiology of urinary tract infection: traditional and emerging pathogens". Dis Mon. 49 (2): 71–82. doi:10.1016/S0011-5029(03)90001-0. PMID 12601338.
  5. ^ "The Species of Escherichia other than E. coli". The Prokaryotes. Retrieved 2006-05-05.
  6. ^ Pien FD, Shrum S, Swenson JM, Hill BC, Thornsberry C, Farmer JJ 3rd (1985). "Colonization of human wounds by Escherichia vulneris and Escherichia hermannii". J Clin Microbiol. 22 (2): 283–5. PMC 268376. PMID 3897270.{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
  7. ^ Chaudhury A, Nath G, Tikoo A, Sanyal SC (1999). "Enteropathogenicity and antimicrobial susceptibility of new Escherichia spp". J Diarrhoeal Dis Res. 17 (2): 85–7. PMID 10897892.{{cite journal}}: CS1 maint: multiple names: authors list (link)