Abstract
A temperate bacteriophage named ‘tau’ which forms plaques on F- strains but not on F+strains of Escherichia coli k 12 has been isolated. This phage adsorbs equally well to F+ and F-strains, which indicates that some later step of the growth cycle is inhibited by the presence of the sex-factor F. The frequency of lysogenization of the phage is also affected by the F factor. The genetic material of phage tau may be DNA. The phage is 40–50 mμ in diameter.
Received:
24/09/1963
Published Online:
Wed Apr 01 00:00:00 UTC 1964
© Society for General Microbiology, 1964
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1964-04-01
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