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Table 1 Results of conjugation between LAL+ aEPEC strains and E. coli K-12 C600

From: Large plasmids encoding antibiotic resistance and localized-like adherence in atypical enteropathogenic Escherichia coli strains

aEPEC strain Source Serotype Resistance profilea Size (MDa) of plasmid(s)b Presence (+) or absence (−) of traA Resistance profile of transconjugant(s) Size (MDa) of transconjugant plasmid(s) LAL
phenotype
A1 Diarrhea O26:NM ~ 60, 4.6
A24 Diarrhea O26:NM Apr 98 + Apr Nalr 98
A14 Diarrhea O26:HND Kmr Nalr 98, ~ 60
A72 Diarrhea O26:HND Kmr Nalr ~ 60
A153 Diarrhea O26:HND 98, < 4.6 +
A46 Diarrhea O55:HND Apr Kmr Tcr ~ 60, 98 + Apr Tcr Nalr 98 +
A76 Diarrhea O85:H40 Apr Cmr ~ 60 + Apr Cmr Nalr 98
A17 Control O105:H7 ~ 60 +
A12 Control O111:NM Kmr Nalr 75, 4.6
A60 Diarrhea O119:H2 98 +
A66 Diarrhea O119:HND Apr Tcr 98 + Apr Tcr Nalr 98 +
A13 Diarrhea O126:NM 65, < 4.6
A11 Diarrhea O142:NM 65, 4.6 +
A104 Diarrhea ONT:H18 Apr Tcr > 98 + Apr Tcr Nalr > 98
A106 Diarrhea ONT:H18 Apr Cmr Tcr > 98 + Apr Tcr Nalr > 98
A10 Diarrhea ONT:HND > 98 +
A102 Diarrhea ONT:HND Apr Kmr Tcr 98 + Apr Tcr Nalr 98 +
A128 Diarrhea ONT:HND Apr Tcr 98 + Apr Tcr Nalr 98
  1. aApr, ampicillin resistant; Kmr, kanamycin resistant; Cmr, chloramphenicol resistant; Tcr, tetracycline resistant; Nalr, nalidicix acid resistant
  2. bThe size of plasmids was calculated based on relative migration of plasmids with known sizes contained in strain 39-R861 [24]