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

Science  25 Mar 1960:
Vol. 131, Issue 3404, pp. 932-933
DOI: 10.1126/science.131.3404.932


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.