| Genus | Species Num | Strain Num | SOURCE |
|---|---|---|---|
| Algoriphagus | 1 | 1 | HMP |
| Aliarcobacter | 1 | 2 | HMP/MGYG |
| Alicycliphilus | 1 | 1 | HMP |
| Aliivibrio | 1 | 1 | HMP |
| Alistipes | 9 | 11 | HMP/MGYG |
| Alkalihalobacillus | 2 | 2 | HMP/MGYG |
| Alkalilimnicola | 1 | 1 | HMP |
| Alkaliphilus | 2 | 2 | HMP |
| Allisonella | 1 | 1 | MGYG |
| Allochromatium | 1 | 1 | HMP |