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  1. Type and morphology. E. coli is a gram-negative, facultative anaerobe, nonsporulating coliform bacterium. Cells are typically rod-shaped, and are about 2.0 μm long and 0.25–1.0 μm in diameter, with a cell volume of 0.6–0.7 μm 3.

    • EPEC

      Introduction. E. coli and related bacteria constitute about...

    • Gram-negative

      Microscopic image of gram-negative Pseudomonas aeruginosa...

    • Enterobacteriaceae

      Enterobacteriaceae is a large family of Gram-negative...

  2. Dec 31, 2022 · The five GTDB-recognized species within E. coli (E. coli, E. coli_E, E. ruysiae, Escherichia sp001660175, and Escherichia sp005843885) and the five other Escherichia species (E. albertii, E. fergusonii, E. marmotae, E. sp002965065, and E. sp004211955) were classified to multiple species-groups by PopCOGenT (supplementary table S1, Supplementary ...

    • Marta Cobo-Simón, Rowan Hart, Howard Ochman
    • Mol Biol Evol. 2023 Jan; 40(1): msac273.
    • 10.1093/molbev/msac273
    • 2023/01
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  4. Jan 1, 2008 · E. coli is Gram-negative and its envelope has three layers: cytoplasmic membrane, peptidoglycan, and outer membrane. The peptidoglycan is rigid determining the rod shape. To a good approximation, the E. coli cell has hemispherical caps and a cylindrical section in between.

    • Galina Reshes, Sharon Vanounou, Itzhak Fishov, Mario Feingold
    • 10.1529/biophysj.107.104398
    • 2008
    • Biophys J. 2008 Jan 1; 94(1): 251-264.
  5. Escherichia virus T4 is a species of bacteriophages that infect Escherichia coli bacteria. It is a double-stranded DNA virus in the subfamily Tevenvirinae from the family Myoviridae. T4 is capable of undergoing only a lytic life cycle and not the lysogenic life cycle.

  6. May 24, 2012 · Common reasons for microbial typing are to identify common or point sources, discriminate between mixed strain infections, distinguish re-infection from relapse, and occasionally to identify a type and disease association (e.g. Escherichia coli O157 and haemolytic uraemic syndrome, skin and throat types of group A Str. pyogenes, etc.).

    • T.L. Pitt, M.R. Barer
    • 10.1016/B978-0-7020-4089-4.00018-4
    • 2012
    • Medical Microbiology. 2012 : 24-38.
  7. Jun 15, 2023 · Metrics. Escherichia coli is a leading cause of invasive bacterial infections in humans. Capsule polysaccharide has an important role in bacterial pathogenesis, and the K1 capsule has been firmly ...

  8. Most E. coli strains are motile and have obtained many of their virulence features from horizontal gene transfer. There are several different pathotypes of E. coli causing gastrointestinal syndromes: diarrheagenic E. coli (DEC), enterotoxigenic E. coli (ETEC); EPEC; Shiga toxin–producing E. coli (STEC), which includes EHEC; enteroaggregative ...

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