Restriction pattern and Southern hybridization of selected plasmids.

(A): Restriction pattern; (B): Southern hybridization; M: Molecular weight marker of 1.5 kb; 1: 15–1327; 2: TT 14–3442 E. cloacae; 3: TT 15–0026; 4: TT 14–3335; 5: TT 14–3337; 6: TT 14–3424; 7: TT 14–3425; 8: TT 15–1363; 9: TT 15–1372. TT represents transconjugants; E.cl represents E. cloacae; E.c represents E. coli; and K.p. represents K. pneumoniae.