Table 4.
Virulence determinants in AIEC and cell-detaching strains from the ECOR collection
| ECOR strains | Cell-detaching strains | References | ||||
|---|---|---|---|---|---|---|
| ECOR53 | ECOR51 | ECOR6 | ECOR59 | ECOR54 | ||
| Virulence determinants associated with pathogenicity islands | ||||||
| Two adhesin gene clusters sfa and pap | + pap1.2.3 sfa1.2 |
+ pap1.2.3 sfa1.2 |
− | − | +sfa1.2 | Boyd et al. [25] |
| The kps capsule operon | +kps1.2 | + kps1.2 | − | − | + kps1.2 | |
| The alpha-hemolysin loci hlyI and hlyII | +hly2 | +hly2 | − | − | + hly2 | |
| Haemolytic activity | ||||||
| PCR detection of the hlyA gene | + Strong haemolysis | + Strong haemolysis | ND | ND | + Strong haemolysis | Lai et al. [24] |
| Distribution of STEC-lpfAs | ||||||
| Four lpfA genetic variants designated lpfAO157/OI-141, lpfAO157/OI-154, lpfAO26 and lpfAO113 | − | ND | − | − | − | Toma et al. [26] |
| Antibiotic resistance in the ECOR collection | ||||||
| Streptomycin | − | − | − | − | − | Mazel et al. [32] |
| Spectinomycin | − | − | − | − | − | |
| Sulfonamide | − | − | − | − | + | |
| Tetracyclin | − | − | + | − | − | |
| Ampicillin | − | − | − | − | − | |
| Kanamycin | − | − | − | − | − | |
| Chloramphenicol | − | − | − | − | − | |
| Mercuric chloride | − | − | − | − | − | |
| Ethidium bromide | − | − | − | − | − | |
| ECOR strains | AIEC phenotype | References | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ECOR43 | ECOR23 | ECOR36 | ECOR69 | ECOR52 | ECOR1 | ECOR2 | ECOR9 | ECOR15 | ECOR35 | ECOR45 | ECOR67 | ECOR44 | ||
| Virulence determinants associated with pathogenicity islands | ||||||||||||||
| Two adhesin gene clusters sfa and pap | − | − | + pap1.2.3 | − | + pap1.2.3 sfa1.2 |
− | + pap1.2.3 | − | − | + pap1 | − | − | + pap1.2.3 | Boyd et al. [25] |
| The kps capsule operon | − | − | + kps1.2 | − | + kps1.2 | − | − | − | − | + kps1.2 | − | − | + kps1.2 | |
| The alpha-hemolysin loci hlyI and hlyII | + hly2 | − | − | − | + hly2 | − | − | − | − | − | − | − | − | |
| Haemolytic activity | ||||||||||||||
| PCR detection of the hlyA gene | No haemolysis | ND | ND | ND | + Strong haemolysis | ND | ND | ND | ND | ND | ND | ND | ND | Lai et al. [24] |
| Distribution of STEC-lpfAs | ||||||||||||||
| Four lpfA genetic variants designated lpfAO157/OI-141, lpfAO157/OI-154, lpfAO26 and lpfAO113 | lpfAO26+ lpfAO157/ OI-141+ |
lpfAO26+ lpfAO113+ |
lpfAO113+ | lpfAO113+ | − | − | − | − | − | lpfAO113+ | lpfAO26+ lpfAO113+ |
lpfAO26+ lpfAO113+ |
lpfAO113+ | Toma et al. [26] |
| Antibiotic resistance in the ECOR collection | ||||||||||||||
| Streptomycin | − | − | − | − | − | − | − | − | − | − | − | − | − | Mazel et al. [32] |
| Spectinomycin | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Sulfonamide | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Tetracyclin | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Ampicillin | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Kanamycin | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Chloramphenicol | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Mercuric chloride | − | − | − | − | − | − | − | − | − | − | − | − | − | |
| Ethidium bromide | − | − | − | − | − | − | − | − | − | − | − | − | − | |