Isolation and characterisation of Hfr strains from a recombination-deficient strain of Escherichia coli


A T6s RecA- strain carrying a lac proB deletion and Fts lac + was challenged with phage T6 and survivors which were both T6r and Lac+ at 42° were tested for fertility. Among these were a number of Hfr strains which had their points of origin at or near the tsx locus and which still carried the recA allele. These arose in comparable frequencies in the RecA… (More)
DOI: 10.1007/BF00333190


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