Table 5.
Plasmid replicon types and genetic environments of ESBL/pAmpC gene-carrying E. coli transconjugants.
| Type of bla Gene | No. of Isolates | Self-Transfer | No. of Replicon Type | Genetic Environment | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| I1α | I1α+ FⅡ | I1α + FⅡ + FIB | FⅡ | FⅡ + FIB | HI2 | HI2 + I1α | HI2 + FⅡ + Iγ |
K | B/O +K + X4 | Upstream | Downstream | |||||
| ISEcp1 | IS26 | IS903 | orf477 | |||||||||||||
| CTX-M-1 | 4 | 3 | 2 | - | 1 | - | - | - | - | - | - | - | 3 | - | - | 3 |
| CTX-M-14 | 12 | 5 | - | - | - | - | - | 3 | 1 | 1 | - | - | - | - | 5 | - |
| CTX-M-55 a | 11 | 9 | - | 1 | - | 8 | - | - | - | - | - | - | - | - | - | 9 |
| CTX-M-55 b | 7 | 4 | - | 1 | 1 | 1 | 1 | - | - | - | - | - | 4 | - | - | 4 |
| CTX-M-65 | 2 | 0 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| CMY-2 | 8 | 6 | 3 | 1 | 1 | - | - | - | - | - | 1 | - | 6 | - | - | - |
| CTX-M-55+CMY-2 | 2 | 1 | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - |
| Total | 46 | 28 | 5 | 3 | 3 | 9 | 1 | 3 | 1 | 1 | 1 | 1 | 14 | 0 | 5 | 16 |
ablaCTX-M-55-orf477; bISEcp1-blaCTX-M-55-orf477.