Experimental pathogenicity of Mollicutes of bovine udder origin in hamster tracheal ring organ culture.
Hamster tracheal-ring organ culture was employed to examine pathogenic effects of 8 isolates of Mollicutes of bovine udder origin. The tested Mollicutes could be categorized into two groups: (i) Mycoplasma F-38, M. mycoides var. capri, M. bovigenitalium mixed with M. bovirhinis, and M. bovigenitalium mixed with M. bovirhinis and Mycoplasma F-38 produced significant ciliostatic effect and infiltration of neutrophils and lymphocytes in lamina propria/subepithelium, hyperplasia and desquamation of epithelial lining cells and loss of cilia; and (ii) A. laidlawii, A. axanthum, an unidentified Acholeplasma and a mixed isolate of M. bovis, M. bovigenitalium, Mycoplasma F-38 and A. laidlawii showed insignificant ciliostatic effects and produced mild histopathological lesions. This correlates with the disease causing potentials of the strains.
Kumar
A
A
Department of Veterinary Public Health and Epidemiology, Haryana Agricultural University, Hisar, India.
Garg
D N
DN
Mahajar
S K
SK
D000818:Animals; D006224:Cricetinae; D009924:Organ Culture Techniques; D008973:Tenericutes / Q000472:pathogenicity*; D014132:Trachea / Q000382:microbiology*