| Sulfolobus |
| Morphology | Sulfolobus |
| CELLULAR |
| Staining | |
| Morphology | Cells coccoid, highly irregular, about 0.8-2 um in diameter, usually occurring singly |
| Motility | nonmotile |
| Specialized structures | .. Cell envelope composed of protein subunits in hexagonal array (Weiss 1974; Taylor et al. 1982 |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Sulfolobus |
| PHYSIOLOGICAL |
| Tropism | Lithotrophic Organotrophic growth by oxidizing complex organic material (eg. yeast extract), sugars or amino acids (Brock 1978). |
| Oxygen | Aerobic growth via oxidation of sulfur, sulfide or tetrathionate (Brock et al. 1972; Shivvers and Brock 1973; Wood et al. 1987). No anaerobic growth via S` reduction. |
| pH | Thermoacidophilic, grows and at pH 1-6. |
| Temperature | Thermoacidophilic, grows above 50`C |
| Requirements | |
| Products | |
| Enzymes | |
| Unique features | Isopranyl ether lipids, calditol and caldariella quinone present (Langworthy 1985). Elongation factor 2 is ADP-ribosylated by diphtheria toxin (Kessel and Klink 1982) |
| ENVIRONMENTAL |
| Habitat | |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Sulfolobus |
| G+C Mol % | 36-38 |
| Reference | Sulfolobus |
| First citation | Brock, T.D., K.M. Brock, R.T. Belly and R.L. Weiss. 1972. Sulfolobus: a new genus of sulfur-oxidizing bacteria living at low pH and high temperature. Arch. Microbiol 84:54-68 |
| The Prokaryotes | |
| Bergey's Systematatic | p 2250 A. Segerer and K. O. Stetter |
| Bergey's Determinative | p 750 |
| References |