| Cross Index | "Brachyarcus thiophilus" |
| SuperSet | Prokaryote, Eubacteria Gram-Negative curved bacteria |
| Compare | Ancylobacter aquaticus , "Brachyarcus thiophilus", Cyclobacterium marinum, Flectobacillus, Meniscus glaucopis, "Pelosigma", Runella slithyformis, Spirosoma linguale |
| Contrast | Archaea |
| Subset |
| Morphology | "Brachyarcus thiophilus" |
| CELLULAR |
| Staining | The Gram reaction has not been reported. |
| Morphology | Rod-shaped cells bent like a bow, 1.0 x 1.5 wide and to 2.5 um long, colourless, usually with several cylindrical gas vesicles which may appear reddish if viewed with a phase-contrast microscope |
| Motility | Non-motile |
| Specialized structures | The cells may occasionally contain some minute sulfur granules. Cells are arranged in groups (coenobia) as a result of polar growth and median cross-division combined with tight attachment to a surface by means of a mucoid substance. Occasionally cells are merely embedded in the polymer and are thus free floating as a flat coenobium. After division, cells form coenobia of two (rings) or four (clover-leaf appearance) or more cells. Delayed cell division results in the formation of pretzel-shaped cells. Division in the coenobia may or may not be synchronous. Coenobia of 2-10 cells may measure 3-6 um in diameter; secondary families of irregularly humped agglomerates of up to 100 um or more in size can be found. Often the mucoid capsule is thin and not distinctly delineated... |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | "Brachyarcus thiophilus" |
| PHYSIOLOGICAL |
| Tropism | |
| Oxygen | Microaerophilic or probably anaerobic |
| pH | |
| Temperature | |
| Requirements | |
| Products | |
| Enzymes | |
| Unique features |
| ENVIRONMENTAL |
| Habitat | Has not
been obtained in pure culture. Originally found in Lake Vuolep Njakajaure, Swedish Lappland, in April, at a depth of 12-13.5 m |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Reference | "Brachyarcus thiophilus" |
| First citation | Skuja,H. (1964) Grundzuge der Algenflora und Algenvegetation der Fjeldgegendend um Abisko in Schwedisch-Lappland. Nova Acta. Reg. Soc. Sci. Upsal. Ser. IV. 1*;1-465 |
| The Prokaryotes | P |
| Bergey's Systematatic | p 137 P. Hirsch |
| Bergey's Determinative | p 65 |
| References |