| Cross Index | Rikenella microfusus |
| Morphology | Rikenella microfusus |
| CELLULAR |
| Staining | Gram negative |
| Morphology | small rods (0.15-0.3 x 0.3-1.5 um but may be up to 5.0 um long) |
| Motility | nonmotile |
| Specialized structures | no spores |
| Division |
| COLONIAL |
| Solid surface | Beta hemolytic |
| Liquid |
| Growth Parameters | Rikenella microfusus |
| PHYSIOLOGICAL |
| Tropism | chemoorganotroph |
| Oxygen | anaerobe |
| pH | |
| Temperature | optimum temperature 37 oC |
| Requirements | growth enhanced by the presence of carbohydrate |
| Products | ferments glucose, mannose, lactose and melibiose and sometimes galactose producing mainly propionic and succinic acid. Does not produce butyric or lactic acids Fatty acids are principally isomethyl branched-chain acids. Menaquinones are present. |
| Enzymes | gelatinase |
| Unique features | grows in the presence of 20% bile, |
| ENVIRONMENTAL |
| Habitat | isolated from the fecal and cecal samples of calves, chickens and Japanese quail |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Rikenella microfusus |
| G+C Mol % |
| Reference | Rikenella microfusus |
| First Citation | Collins et al 1985 Syst Appl. Microbiol
6: 79-81 Collins et al 1985 IJSB 35: 375 |
| The Prokaryotes | p |
| Bergey's Determinative | p 300 |
| References |