Table 4 Virulence determinants in AIEC and cell-detaching strains from the ECOR collection
From: High carriage of adherent invasive E. coli in wildlife and healthy individuals
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 | − | − | − | − | − | − | − | − | − | − | − | − | − | |