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Coloured TEM of T4 bacteriophage infecting E. coli

Coloured TEM of T4 bacteriophage infecting E. coli

M090/0075

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Credit

BIOZENTRUM, UNIVERSITY OF BASEL / SCIENCE PHOTO LIBRARY BIOZENTRUM, UNIVERSITY OF BASEL / SCIENCE PHOTO LIBRARY

Caption

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 E.coli. 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.

Release details

Model release not required. Property release not required.

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