| Cross Index | Spiroplasma |
| SuperSet | Prokaryote, Eubacteria, Mycoplasmas (Mollicutes) |
| Compare | Acholeplasma, Anaeroplasma, Asteroleplasma anaerobium, Mycoplasma, Spiroplasma,Ureaplasma |
| Contrast | Archaea:Thermoplasma |
| Subset |
| Morphology | Spiroplasma |
| CELLULAR |
| Staining | Gram negative |
| Morphology | Cells pleomorphic, varying in size and shape from helical and branched nonhelical filaments to spherical or ovoid. The helical forms, usually 100-200 nm in diameter and 3-5 um in length, typically occur during the logarithmic phase of growth and in some species persist during the stationary phase. Spherical cells 300 nm in diameter and nonhelical filaments are frequently seen in the stationary phase or in all growth phases in suboptimal growth media |
| Motility | Helical filaments are motile, with flexional and twitching movements, and often show an apparent rotatory motility. Flagella, periplasmic fibrils, or other organelles of locomotion are not present |
| Specialized structures | Cells are bounded by a plasma membrane intracellular fibrils have been demonstrated. Cells divide by binary fission |
| Division |
| COLONIAL |
| Solid surface |
| Liquid |
| Growth Parameters | Spiroplasma |
| PHYSIOLOGICAL |
| Tropism | |
| Oxygen | |
| pH | |
| Temperature | |
| Requirements | |
| Products | |
| Enzymes | |
| Unique features |
| ENVIRONMENTAL |
| Habitat | |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Spiroplasma |
| G+C Mol % |
| Reference | Spiroplasma |
| First citation | Saglio,P.,M. L'Hospital, D., Lafleche, G. Dupont, J.M. Bove,J.G. Tully and E.A.Freundt (1973) Spiroplasma citri gen. And sp. N.A: a mycoplasma-like organism oalssicated with a "stubborn" disease of cirtus. IJSB 23:191-204 |
| The Prokaryotes | p |
| Bergey's Systematatic | p 781 R. F. Whitcomb and J. G. Tully |
| Bergey's Determinative | p 707 |
| References |