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 |