| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Arthrobacter sp. FB24 | 1 | 1 | HMP |
| Aster yellows witches'-broom phytoplasma | 1 | 1 | HMP |
| Asticcacaulis excentricus | 1 | 2 | HMP |
| Atlantibacter hermannii | 1 | 11 | MGYG |
| Atopobium minutum | 1 | 1 | MGYG |
| Aurantimonas manganoxydans | 1 | 2 | HMP |
| Azoarcus olearius | 1 | 2 | HMP |
| Azorhizobium caulinodans | 1 | 1 | HMP |
| Azospirillum sp. B510 | 1 | 1 | HMP |
| Azotobacter vinelandii | 1 | 5 | HMP |