Table 4.
Combinations of staphylococcal superantigen (SAg) genes observed in 82 SAg gene-positive coagulase-negative staphylococcal isolates from bovine intramammary infections
| Speciesa | Combinations of SAg genes | No. of isolates |
|---|---|---|
|
S. chromogenes (n = 42) |
sea, seb, selj, selk, seln, selq | 1 |
| sea, seb, selj, selk, seln, selq, selr | 1 | |
| sea, seb, selk, seln, selq | 1 | |
| sea, selk | 1 | |
| seb, seln, selq | 29 | |
| seb, seln, selq, selu | 1 | |
| sec | 1 | |
| sed | 1 | |
| selq | 4 | |
| selu | 2 | |
|
S. xylosus (n = 11) |
seb, seln, selq | 8 |
| seb, seln, selq, selo | 1 | |
| seg | 1 | |
| selu | 1 | |
|
S. hyicus (n = 8) |
seb, sec, sed, selk, seln, selq | 1 |
| seb, sed, seln, selq | 1 | |
| seb, selk, seln, selq | 2 | |
| sec, sed, selk | 1 | |
| selk | 3 | |
|
S. sciuri subsp. carnaticus (n = 7) |
seb, seln, selq | 2 |
| sei | 4 | |
| selk | 1 | |
|
S. haemolyticus (n = 6) |
seb, sed, seln, selq | 1 |
| seb, seln, selq | 2 | |
| selj | 3 | |
|
S. simulans (n = 5) |
seb, seln, selq | 3 |
| sed | 1 | |
| sei | 1 | |
|
S. capitis (n = 1) |
seh | 1 |
|
S. epidermidis (n = 1) |
seh, seg | 1 |
|
S. succinus (n = 1) |
seb, seln, selq | 1 |
a
The species was determined by partial 16S rRNA gene sequence analysis except S. caprae and S. capitis which were determined by partial rpoB gene sequence analysis.