| Cross Index | Capnocytophaga |
| SuperSet | Prokaryote, Eubacteria Gliding Bacteria |
| Compare | Cytophagales, Beggiatoales Single
Celled, rod shaped Capnocytophaga,
Chitinophaga
pinensis , Cytophaga, Flexibacter,
Flexithrix dorotheae,
Lysobacter,
Microscilla,
Sporocytophaga
myxococcoides, Thermomena, |
| Contrast | Archaea |
| Subset |
| Morphology | Capnocytophaga |
| CELLULAR |
| Staining | Gram-negative |
| Morphology | Short to elongate flexible rods or filaments, 0.42-0.6 um in diameter and 2.5-5.7 um in length. Ends of cells usually round to tapered. Cells can be pleomorphic |
| Motility | No flagella; motile by gliding. |
| Specialized structures | Capsules and sheaths not formed. Resting stages not known |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Capnocytophaga |
| PHYSIOLOGICAL |
| Tropism | Chemoorganotrophic, |
| Oxygen | Facultative anaerobic Growth occurs in air with 5% CO2 Some strains are reported to grow aerobically without CO2. fermentative type metabolism |
| pH | |
| Temperature | Optimum temperature: 35-37`C |
| Requirements | Primary isolation and initial in-vitro growth require CO2 This organism utilizes variable carbohydrates as fermentable substrates and energy source |
| Products | Fermentation of glucose yields chiefly acetate and succinate as major acidic end products; trace amounts of isovalerate. Polysaccharides such as dextran, glycogen, inulin, or starch may be fermented |
| Enzymes | Catalase- and oxidase-negative, o- nitrophenyl-B-D-galactoside (ONPG), and benzidine-positive. |
| Unique features |
| ENVIRONMENTAL |
| Habitat | Found in association with animal and human hosts |
| Lifestyle | |
| Pathogenicity | Although the pathogenicity of these organisms is unknown, they are frequent isolates from oral sites and are also recovered from pulmonary lesions and abscesses, as well as from healthy oral and nonoral sites in their hosts |
| Distribution |
| Genome | Capnocytophaga |
| G+C Mol % | 33-41 (Tm) |
| Reference | Capnocytophaga |
| First citation | Leadbetter,E.R., S.C. Holt and S.S. Socransky. 1979. Capnocytophaga: new genus of Gram-negative bacteria I. General characteristics, taxonomic considerations and significance. Arch. Microbiol 122:9-16 |
| The Prokaryotes | |
| Bergey's Systematatic | p 2050 S. C. Holt and S.A. Kinder |
| Bergey's Determinative | p 486 |
| References |