| Cross Index | Ureaplasma |
| SuperSet | Prokaryote, Eubacteria, Mycoplasmas (Mollicutes) |
| Compare | Acholeplasma, Anaeroplasma, Asteroleplasma anaerobium, Mycoplasma, Spiroplasma,Ureaplasma |
| Contrast | Archaea:Thermoplasma |
| Subset |
| Morphology | Ureaplasma |
| CELLULAR |
| Staining | Gram-negative. |
| Morphology | Cells from 18- to 24-h-old cultures are round or coccobacillary, 330 nm in diameter. A variety of pleomorphic forms may be seen depending on the strain, age of the culture, and the method of examination |
| Motility | Non-motile |
| Specialized structures | Cells are bounded by a plasma membrane only |
| Division |
| COLONIAL |
| Solid surface | Colonies generally are small, 15 to 60 um in diameter, and may not have zones of surface growth (and, therefore, may lack the "fired egg" appearance of colonies of most other members of the Mollicutes). |
| Liquid |
| Growth Parameters | Ureaplasma |
| PHYSIOLOGICAL |
| Tropism | |
| Oxygen | Microaerophilic. |
| pH | Optimum pH 6.0 |
| Temperature | Optimum temperature, 37`C; poor growth occurs at 22`C and no growth at 42`C |
| Requirements | |
| Products | All strains hydrolyze urea with the production of ammonia Arginine and the usual carbohydrates are not metabolized |
| Enzymes | |
| Unique features | Growth is retarded by thallous acetate (0.05%), 5-iodo-2'- deoxyuridine (125 ug/ml), hydroxyurea (500 ug/ml), acetohydroxamic acid (1 mM), the tetracyclines, erythromycin, streptomycin, chloramphenicol, gentamicin and kanamycin, but not by the penicillins.. |
| ENVIRONMENTAL |
| Habitat | Occur predominantly in the mouth, respiratory tract and urogenital tract of humans and various animal species |
| Lifestyle | |
| Pathogenicity |
| Distribution |
| Genome | Ureaplasma |
| G+C Mol % | human origin 26.9- 28.0
bovine origin 28.7-30.2. |
| Reference | Ureaplasma |
| First citation | Shepard,M.C., C.D. Lunceford, D.K. Ford, R.H. Purcell, D. Taylor-Robinson, S. Razin and F.T.Black (1974)Ureaoplasma urealyticum gen. Nov., sp. Nov,: proposed nomenclature for the human T (T-strain) mycoplasmas IJSB 24:160-171 |
| The Prokaryotes | p |
| Bergey's Systematatic | p 770 D. Tayloer-Robinson and R. N. Gourlay |
| Bergey's Determinative | p 707 |
| References |