CiteWeb id: 19700000053

CiteWeb score: 2883

DOI: 10.1016/0022-2836(70)90051-3

Escherichia coli cells of strain K12 and C can be made competent to take up temperate phage DNA without the use of “helper phage”. This competence is dependent on the presence of calcium ions and is effective for both linear and circular DNA molecules.