Officers of Division M
meetings & events
Information about the ASM General Meeting, and other meetings of interest.
Instructions on assembling icosahedra, links to web sites about teaching,
books, and more.
Phage facts & portraits
Information about and micrographs, diagrams, or other
images of specific phages.
Links to other sites on the
World Wide Web that are primarily about bacteriophages or generally about
The practical phage
Books about phage
Phage know the secrets of life
This web site was created by Division M, which is responsible for its
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Copyright © 1998 American Society for
Microbiology, all rights reserved.
Electron micrograph of bacteriophage P22
P22 is genetically a member of the lambda-like bacteriophage
family, and morphologically a member of the Podoviridae. The T=7 icosahedral head is about
60 nm in diameter.
Its known hosts include "smooth" strains of Salmonella typhimurium.
This electron micrograph is by
Sherwood Casjens and Elaine Lenk.
The phage facts pages of this site give more information about