| Cross Index | Thiothrix nivea |
| SuperSet | Prokaryote, Eubacteria Sheathed heterotrophs and Nonphotosynthetic, Nonfruiting Gliding Bacteria |
| Compare | Herpetosiphon, Thioploca and Thiothrix
nivea which also have
sheaths are a lso included in Nonphotosynthetic, Nonfruiting Gliding Bacteria in the non fruiting section. The genus Lyngbya which is one of the cyanobacteria also has
a sheath. Clonothrix fusca Crenothrix polyspora, Haliscomenobacter hydrossis, Leptothrix, Lieskeella bifida Phragmidiothrix multiseptata Sphaerotilus natans , Thioploca, Thiothrix nivea, Herpetosiphon |
| Contrast | Archaea |
| Subset |
| Morphology | Thiothrix nivea |
| CELLULAR |
| Staining | Gram-negative. |
| Morphology | Rods, about 1.0-1.5 um in diameter, which exist in multicellular rigid filaments of uniform diameter within a sheath and which produce gonidia from the open end of the sheath. Rosettes may be produced. |
| Motility | The gonidia are motile by gliding. No flagella are present, but a tuft of fimbria may be present on one end of the gonidium. |
| Specialized structures | The closed end of the sheath may have a holdfast Capsules are not produced. Resting stages are now??? known Sulfur globules are deposited within invaginations of the cytoplasmic membrane when cells grow in the presence of a reduced inorganic sulfur compound. By light microscopy the sulfur globules appear to be internal |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Thiothrix nivea |
| PHYSIOLOGICAL |
| Tropism | mixotrophic |
| Oxygen | Aerobic or microaerophilic |
| pH | |
| Temperature | Optimum temperature: 25- 30`C; maximum: about 32-34`C; minimum: about 6-8`C. |
| Requirements | require any of several small organic compounds as well as a reduced inorganic sulfur source |
| Products | |
| Enzymes | oxidase-positive. Catalase-negative |
| Unique features |
| ENVIRONMENTAL |
| Habitat | Found in sulfide- containing flowing water and in activated-sludge sewage systems |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Thiothrix nivea |
| G+C Mol % | 52(Tm) |
| Reference | Thiothrix nivea |
| First citation | Winogradsky,S. 1888. Euber Eisenbakterien Bot. Z. 46: 261-270 |
| The Prokaryotes | |
| Bergey's Systematatic | p 2098 J. M. Larkin |
| Bergey's Determinative | p 493 |
| References |