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 |