Table 1 Characteristics and comparison of AmpC-producing Salmonella donor strains and Escherichia coli transconjugants
Isolate | Resistance genes | Inc. group of transferred Plasmid | Resistance phenotype | MIC values (µg/ml) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
AMP | AMC | CTX | CAZ | NAL | CIP | SMX | TET | ||||
253 | blaCMY-2, tet(A), sul2 | IncA/C | BLA, NAL, (CIP), SMX, TET | > 64 | > 32/16 | > 4 | > 8 | > 128 | 0.5 | > 1024 | > 64 |
TC253 (HK225 transconjugant) | blaCMY-2, tet(A), sul2 | BLA, SMX, TET | > 64 | > 32/16 | > 4 | > 8 | 8 | 0.06 | >1024 | 32 | |
300 | blaCMY-2, tet(A), sul2 | IncI1 | BLA, NAL, CIP, SMX, TET | > 64 | > 32/16 | > 4 | > 8 | > 128 | 1 | > 1024 | > 64 |
TC300 (HK225 transconjugant) | bla CMY-2 | BLA | > 64 | > 32/16 | > 4 | > 8 | 8 | 0.06 | 32 | ≤ 2 | |
417 | blaCMY-2, tet(A), sul2 | IncA/C | BLA, NAL, CIP, SMX, TET | > 64 | > 32/16 | > 4 | > 8 | > 128 | 1 | > 1024 | > 64 |
TC417 (HK225 transconjugant | blaCMY-2, tet(A), sul2 | BLA, SMX, TET | > 64 | > 32/16 | > 4 | > 8 | 8 | 0.06 | >1024 | 32 | |
E. coli HK225 | – | – | – | 2 | ≤ 2/1 | ≤ 0.25 | ≤ 0.5 | 8 | 0.06 | 32 | ≤ 2 |