TABLE 1

MICs of colistin against WCHEC-LL123 and its transconjugants

StrainDescriptionmcr geneMIC of colistin (μg/ml)
WCHEC-LL123Wild isolatemcr-1, mcr-3.58
TxLL123-1Transconjugant, J53 acquired the mcr-1-carrying plasmid from WCHEC-LL123mcr-14
TxLL123-3Transconjugant, J53 acquired the mcr-3-carrying plasmid from WCHEC-LL123mcr-3.54
J53Recipient straina1
  • a No mcr gene.