| Cross Index | Asteroleplasma anaerobium |
| SuperSet | Prokaryote, Eubacteria, Mycoplasmas (Mollicutes) |
| Compare | Acholeplasma, Anaeroplasma, Asteroleplasma anaerobium, Mycoplasma, Spiroplasma,Ureaplasma |
| Contrast | Archaea:Thermoplasma |
| Subset |
| Morphology | Asteroleplasma anaerobium |
| CELLULAR |
| Staining | Gram-negative |
| Morphology | Cells of young (16- to 18-h-old) cultures are coccoid, 0.5-2.0 um in diameter. Older cells have a variety of pleomorphic forms. |
| Motility | Nonmotile |
| Specialized structures | Cells are bounded by a plasma membrane only |
| Division |
| COLONIAL |
| Solid surface | Surface colonies have a dense center with a translucent periphery, or "fried egg" appearance. Subsurface colonies are golden, irregular and often multilobed. |
| Liquid |
| Growth Parameters | Asteroleplasma anaerobium |
| PHYSIOLOGICAL |
| Tropism | |
| Oxygen | Obligately anaerobic; the inhibitory effect of oxygen on growth is not alleviated during repeated subcultures |
| pH | Optimum pH, 6.5-7.0. |
| Temperature | Optimum temperature, 37`C; no growth at 26 and 47`C. |
| Requirements | Do not require sterols for growth |
| Products | Strains vary in their ability to ferment various carbohydrates. The products of carbohydrate fermentation include acids (generally acetic, formic, propionic, lactic and succinic), ethanol, and gases primarily CO2, but some strains also produce H2 |
| Enzymes | |
| Unique features | nonbacteriolytic strains of anaerobic mycoplasmas are described. |
| ENVIRONMENTAL |
| Habitat | bovine and ovine rumen. |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Asteroleplasma anaerobium |
| G+C Mol % | 40.3-40.5 |
| Reference | Asteroleplasma anaerobium |
| First citation | Robinson and Freundt 1987. IJSB 37: 78-81 |
| The Prokaryotes | p |
| Bergey's Determinative | p 706 |
| References |