85. Resistance of mycoplasmas. Genus Acholeplasma. Swine pathogenic Mycoplasma species.

Question 1

Biochemistry and Antigens?

Answer 1

Biochemistry
• glucose fermentation, arginine hydrolysis,
cholesterol demand
Antigens
• growth inhibition test
• metabolism inhibition test

Question 2

Classification and pathogenecity?

Answer 2

Classification
• Family:
•genom size, cholesterol demand, morphology
• Genus:
•optimal temperature, pH, glucose, arginine,
urease
Pathogenicity
• saprophytes – fac. pathogens – pathogens

Question 3

Swine and Human Pathogenic mycoplasm species?

Answer 3

Important Mycoplasma-species
Human
• M. pneumoniae: pneumonia (human)

Swine
• M. hyopneumoniae: enzootic pneumonia
• M. hyorhinis: polyserositis, rhinitis, arthritis
• M. hyosynoviae: arthritis
• M. (E.) suis: anaemia,
swine eperythrozoonosis, USA, EU

Question 4

Acholeplasma Genus?

Answer 4

ACHOLEPLASMA genus
Culture
• aerobic-facultative anaerobic, cholesterol not needed
Pathogenicity
• saprophytes - facultative pathogens
• A. axanthum: isolated from clinical samples
• A. oculi: sheep, goat conjunctivitis