| Isolates | CTAB (100 µM) | Triton-X100 (0.1%) |
| GNG-AV1 | + | − |
| GNG-AV2 | + | − |
| GNG-AV3 | − | − |
| GNG-AV4 | + | − |
| GNG-AV5 | + | − |
| GNG-AV6 | + | − |
| GNG-AV7 | + | − |
| GNG-AV8 | − | − |
| GNG-AV9 | + | − |
| GNG-AV10 | + | − |
| GNG-AV11 | + | − |
| GNG-AV12 | + | − |
| GNG-AV13 | + | + |
| GNG-AV14 | − | − |
| GNG-AV15 | + | + |