83. Mycoplasmas (habitat, morphology, staining). Genus Ureaplasma. Bovine pathogenic Mycoplasma species.

Question 1

Mycoplasm Habitat, Morphology and staining?

Answer 1

MYCOPLASMA genus
Habitat
• human, mucous membranes of animals (respiratory tract, genitals,
intestine)
• plants
Morphology
• the smallest free-living microorganisms (0.2-0.8 µm)
• pleomorphic, pear shaped, long braching filaments
• no cell wall!!!
Staining
• Gram-negative
• Giemsa

Question 2

Bovine Pathogenic Mycoplasma species?

Answer 2

Cattle
• M. mycoides ssp. mycoides: contagious bovine pleuropneumonia
• M. bovis: arthritis, mastitis, pneumonia
• M. dispar: pneumonia in calves
• M. bovigenitalium: pneumonia, genital inf.
• M. bovoculi: kertoconjunctivitis
• M. californicum, M. canadense: mastitis

Question 3

Ureaplasma Genus?

Answer 3

UREAPLASMA genus
Culture
• facultative anaerobic, CO2
, cholesterol demand
Biochemistry
• urease +
Pathogenicity
• U. urealyticum: human, genital inflammation
• U. diversum: cattle genital inflammation, semen anomalies
• U. canigenitalium: dog genital infection