| Genus | Species Num | Strain Num | SOURCE |
|---|---|---|---|
| Pseudoleptotrichia | 1 | 1 | HMP |
| Pseudomonas | 17 | 33 | HMP/MGYG |
| Pseudooceanicola | 1 | 1 | HMP |
| Pseudothermotoga | 1 | 1 | HMP |
| Pseudovibrio | 1 | 1 | HMP |
| Psychrobacter | 2 | 2 | HMP |
| Psychroflexus | 1 | 1 | HMP |
| Psychromonas | 2 | 2 | HMP |
| Pygmaiobacter | 1 | 1 | MGYG |
| Pyramidobacter | 1 | 2 | HMP/MGYG |