Nature of transforming deoxyribonucleic acid in calcium-treated Escherichia coli

P Strike, G O Humphreys, R J Roberts
1979 Journal of Bacteriology  
A study of the reactivation of ultraviolet-irradiated plasmid and phage deoxyribonucleic acid molecules after transformation into Escherichia coli strains indicated that, when double-stranded deoxyribonucleic acid was used as the donor species, it was taken up without conversion to the single-stranded form.
doi:10.1128/jb.138.3.1033-1035.1979 fatcat:cje4fsdyszak5a6hs5xbo7lreu