Table 2.
MIC susceptibility profiles of tetracycline and the corresponding genotypes for 2 B. adolescentis strains, 3 B. bifidum strains, 12 B. pseudocatenulatum strains, 18 B. breve strains and 19 B. lactis strains.
| Species | Strain | Origin | MIC (μg/ml) | Tetracycline resistance genes | |||
|---|---|---|---|---|---|---|---|
| tet(W) | tet(O) | tet(S) | The other 10 genes | ||||
| B. adolescentis | W25 | Adult feces | <0.016 | − | − | − | − |
| W42 | Adult feces | <0.016 | − | − | − | − | |
| B. bifidum | Pronova BB47a | Human | <0.016 | − | − | − | − |
| Y24 | Adult feces | ≥256 | + | − | − | − | |
| Y21 | Adult feces | ≥256 | + | − | − | − | |
| B. pseudocatenulatum | L37 | Adult feces | <0.016 | − | − | − | − |
| W13 | Adult feces | <0.016 | − | − | − | − | |
| W28 | Adult feces | <0.016 | − | − | − | − | |
| N2 | Adult feces | <0.016 | − | − | − | − | |
| A35 | Child feces | <0.016 | − | − | − | − | |
| D52 | Child feces | <0.016 | − | − | − | − | |
| J56 | Adult feces | ≥256 | + | − | − | − | |
| H23 | Child feces | ≥256 | + | − | − | − | |
| Z25 | Child feces | ≥256 | + | − | − | − | |
| a39 | Child feces | ≥256 | + | − | − | − | |
| Y1 | Adult feces | ≥256 | − | + | − | ||
| F312 | Adult feces | ≥256 | − | − | + | − | |
| B. breve | ATCC 15700b | Human | <0.016 | − | − | − | − |
| Pronova BB8a | Human | <0.016 | − | − | − | − | |
| BBW | Child feces | <0.016 | − | − | − | − | |
| BBM | Child feces | <0.016 | − | − | − | − | |
| BB2 | Child feces | <0.016 | − | − | − | − | |
| BB | Child feces | <0.016 | − | − | − | − | |
| N1 | Adult feces | <0.016 | − | − | − | − | |
| N24 | Adult feces | <0.016 | − | − | − | − | |
| L211 | Adult feces | <0.016 | − | − | − | − | |
| W46 | Adult feces | <0.016 | − | − | − | − | |
| SQS3-56 | Child feces | <0.016 | − | − | − | − | |
| SQS3-64 | Child feces | <0.016 | − | − | − | − | |
| SQS5-51 | Child feces | <0.016 | − | − | − | − | |
| SQS5-52 | Child feces | <0.016 | − | − | − | − | |
| A34 | Child feces | <0.016 | − | − | − | − | |
| a313 | Child feces | <0.016 | − | − | − | − | |
| a37 | Child feces | <0.016 | − | − | − | − | |
| A27 | Child feces | ≥256 | − | − | + | − | |
| B. lactis | Pronova BL99a | Human | <0.016 | − | − | − | − |
| Pronova BL25a | Human | <0.016 | − | − | − | − | |
| Pronova BI516a | Human | <0.016 | − | − | − | − | |
| J316 | Adult feces | <0.016 | − | − | − | − | |
| F5 | Adult feces | <0.016 | − | − | − | − | |
| F18 | Adult feces | <0.016 | − | − | − | − | |
| F9 | Adult feces | ≥256 | + | − | − | − | |
| F10 | Adult feces | ≥256 | + | − | − | − | |
| F11 | Adult feces | ≥256 | + | − | − | − | |
| F12 | Adult feces | ≥256 | + | − | − | − | |
| J310 | Adult feces | ≥256 | + | − | − | − | |
| J311 | Adult feces | ≥256 | + | − | − | − | |
| J317 | Adult feces | ≥256 | + | − | − | − | |
| L35 | Adult feces | ≥256 | + | − | − | − | |
| L36 | Adult feces | ≥256 | + | − | − | − | |
| L38 | Adult feces | ≥256 | + | − | − | − | |
| L310 | Adult feces | ≥256 | + | − | − | − | |
| L311 | Adult feces | ≥256 | + | − | − | − | |
| L312 | Adult feces | ≥256 | + | − | − | − | |
aCommercial strain obtained from the Shanghai Jiao Da Onlly Co. (Shanghai, PR China).
bType strain.