Research Article

Self-Conjugation of the Enteropathogenic Escherichia coli Adherence Factor Plasmid of Four Typical EPEC Isolates

Table 3

Frequencies of conjugal transfer of the pEAF plasmid of four tEPEC strains.

Recipient
Donor tEPEC strainDH5αRND3319RND3264RN

D0131 pD0131::km1.1 × 10−7 to 7.9 × 10−82.8 to 4.2 × 10−81.3 × 10−8 to 7.5 × 10−8
D3152 pD3152::km2.8 × 10−6 to 2.5 × 10−82.3 × 10−78.2 × 10−8 to 9.4 × 10−8
D3048 pD3048::km5.2 × 10−7 to 9.3 × 10−71.8 × 10−6 to 3.6 × 10−91.0 × 10−7 to 6.2 × 10−9
D3129 pD3129::km2.4 × 10−6 to 2.0 × 10−81.5 × 10−6 to 3.3 × 10−71.3 × 10−7 to 5.6 × 10−8

The experiments were repeated at least twice. and nalidixic acid resistant derivatives.