| Cross Index | Porphyromonas |
| Morphology | Porphyromonas |
| CELLULAR |
| Staining | Gram negative |
| Morphology | short rods (0.5-0.8 x 1.0-3.0 um) |
| Motility | nonmotile |
| Specialized structures | no spores |
| Division |
| COLONIAL |
| Solid surface | form brown to vlack colonies on blood agar due to protohem production |
| Liquid |
| Growth Parameters | Porphyromonas |
| PHYSIOLOGICAL |
| Tropism | chemoorganotroph |
| Oxygen | anaerobe |
| pH | |
| Temperature | |
| Requirements | growth is not significantly affected by carbohydrates but is greatly enhanced by protein hydrolysates such as peptone or by yeast extract |
| Products | major fermentation products are n-butric and acetic acids. Minor products are propionic, isobutyric, isovaleric and sometimes phenylacetic acids. Nonhydroxylated cellular fatty acids are predominantly isomethyl branched acids |
| Enzymes | |
| Unique features | asaccharolytic |
| ENVIRONMENTAL |
| Habitat | isolated from oral infections and root canal infections |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Porphyromonas |
| G+C Mol % |
| Reference | Porphyromonas |
| First Citation | Shah and Collins 1988 IJSB 38:128-131 |
| The Prokaryotes | p |
| Bergey's Determinative | p 299 |
| References |