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