Bacteriophage. Coloured transmission electron micrograph of a T4 bacteriophage (orange) after injecting its viral DNA into the Escherichia coli bacter

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Bacteriophage. Coloured transmission electron micrograph of a T4 bacteriophage (orange) after injecting its viral DNA into the Escherichia coli bacterium (blue). Bacteriophages are viruses that infect bacteria; T4 is specific to It is secured to the surface of the cell by spidery tail fibres. The tail, a contractile sheath, shortens to allow a syringe-like tube (below base plate of tail) to enter the cell membrane, emptying the DNA contents of the head into the bacterium. The capsid, a protein coat surrounding the DNA, stays outside. Phage' synthesis in the cell follows rapidly. Magnification: X65,000 at 6x7cm size. magnification: x220,000 at 10x8 size.

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Size: 3661px × 2987px
Photo credit: © BIOZENTRUM, UNIVERSITY OF BASEL/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: .coli, bacteriophage, bacteriophages, image, images, magnified, microbiology, microscopic, phage, photos, subjects, t4, virology, virus, viruses