Table 2.
Phenotypic and genotypic features in the tested strains
| Strain no. | Phenotypic features | Presence of the studied genes encoding | Resistance genes | Resistance phenotype | |||||
|---|---|---|---|---|---|---|---|---|---|
| CF | GEL | CAS | LEC | Enterotoxins | Exfoliative toxins | Host’s matrix proteins binding | |||
| Human strains | |||||||||
| SPL1 | + | − | + | − | - | siet | ebpS, spsO, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, TE |
| SPL2 | − | − | + | − | sed | siet | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, ERY, CLI |
| SPL3 | − | − | + | − | - | siet, exiA | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | - | - |
| SPL4 | − | + | + | − | sec | siet, exiA | ebpS, spsO, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN |
| SPL5 | + | − | + | − | - | siet | ebpS, spsO, spsL, spsE, coa, LukS, LukF, icaD, lip | blaZ | PEN, TE |
| SPL6 | + | − | + | − | sec | siet | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | - | - |
| SPL7 | + | − | + | − | sec, sed | siet, exiB | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | - | - |
| Animal strains | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| SPZ1 | − | + | + | − | - | siet | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN |
| SPZ2 | − | − | + | − | - | siet, exiB | ebpS, spsO, spsP, spsQ, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, ERY, CLI, TE, NOR, CIP |
| SPZ3 | − | + | + | − | - | siet | ebpS, spsP, spsQ, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, ERY, CLI, GEN, TE, NOR, CIP |
| SPZ4 | − | + | + | + | - | siet | ebpS, spsP, spsQ, spsL, spsE, fnbA, eno, coa, LukS, LukF, icaD, lip | mecA, blaZ | PEN, OXC, ERY, CLI, GEN, TE, NOR, CIP, SXT |
| SPZ5 | − | + | + | − | - | siet | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, ERY, CLI, TE |
| SPZ6 | − | − | + | − | − | siet | ebpS, spsL, spsE, eno, coa, LukS, LukF, icaD, lip | blaZ | PEN, ERY, CLI |
| SPZ7 | − | + | + | − | - | siet | ebpS, spsP, spsQ, spsL, spsE, fnbA, eno, coa, LukS, LukF, icaD, lip | mecA, blaZ | PEN, OXC, ERY, CLI, GEN, TE, NOR, CIP, SXT |
All strains produced lipase and were susceptible to rifampicin, fusidic acid, linezolid, and tigecycline
CF clumping factor, GEL gelatinase, CAS caseinase, LEC lecithinase, PEN penicillin G, OXC oxacillin, ERY erythromycin, CLI clindamycin, GEN gentamycin, TE tetracycline, NOR norfloxacin, CIP ciprofloxacin, SXT sulfamethoxazole/trimethoprim, “+” positive,“−” negative