Table 2 Features of the studied colistin resistant and susceptible K. pneumoniae isolated from poultry
Isolate ID | Col MIC (mg/L) | Origin | Year of isolation | City | MgrB | PmrB | CrrA | CrrB | Sequence type | AMR |
|---|---|---|---|---|---|---|---|---|---|---|
K135 | > 128 | Dead broiler | 2017 | Sardrud | WT | R256G | A83V | WT | ST11 | D, CIP, LVX, GMa |
K313 | 128 | Dead broiler | 2018 | Marand | Insertion of IS1-like between + 116, + 117 | R256G | WT | K325R | ST485 | D, CIP, LVX |
K315 | > 128 | Dead broiler | 2018 | Marand | Q30STOP | R256G | WT | S195N, I27V | ST3380 | D |
K513 | > 128 | Dead turkey | 2018 | Ajabshir | Insertion of IS3-like between + 112, + 113 | R256G | WT | F303S, I27V | ST37 | D, GMa, CIP, LVX |
K24 | > 128 | Healthy broiler | 2018 | Malekan | L8STOP,∆c25 | WT | WT | WT | ST525 | D, CIP, LVX |
K109 | > 128 | Healthy broiler | 2018 | Marand | Insertion of IS5-like between + 74, + 75 | R256G | WT | WT | ST11 | D, GM, CIP, LVX |
K145 | > 128 | Healthy broiler | 2018 | Malekan | C16STOP | R256G | WT | T150R | ST726 | D, GM, LVX, CIP, FOS |
K460 | 64 | Healthy broiler | 2018 | Bostanabad | Insertion of IS3-like between + 134, + 135 | A246T | WT | WT | ST74 | Non |
K510 | 128 | Healthy broiler | 2018 | Bostanabad | Q30STOP | R256G | WT | WT | ST726 | D, GM, CIP, LVX |
K79S | 0.25 | Healthy broiler | 2018 | Hashtroud | WT | R256G | WT | WT | ND | D, CIP, LVX, FOS |
K79R1c | > 128 | – | – | – | ∆mgrB locusb | – | – | – | – | – |
K79R2c | 64 | – | – | – | – | – | – | – | – | – |
K113S | 1 | Healthy broiler | 2018 | Bostanabad | WT | WT | WT | K325R | ND | D |
K113Rc | 32 | – | – | – | – | T93N | – | – | – | – |