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Isolation of a Bacteriophage Specific for the F+ and Hfr Mating Types of Escherichia coli K-12

Tim Loeb
Science
New Series, Vol. 131, No. 3404 (Mar. 25, 1960), pp. 932-933
Stable URL: http://www.jstor.org/stable/1705041
Page Count: 2
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Abstract

Seven phage stocks have been prepared from a sample of sewerage. The stocks grow only on the F+ and Hfr mating types of Escherichia coli strain K-12. This specificity is not shared by any previously characterized phage which was tested. The specificity of one of the isolates, f1, has been well correlated with the salmonella cross-streak test described by Zinder.

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