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The relationship of two equine mycoplasmas to Mycoplasma mycoides

Published online by Cambridge University Press:  25 March 2010

R. M. Lemcke
Affiliation:
Lister Institute of Preventive Medicine, Chelsea Bridge Road, London, SW1W 8RH
H. Ernø
Affiliation:
FAO/WHO Collaborating Centre for Animal Mycoplasmas, Institute of Medical Microbiology, Bartholin Building, University of Aarhus, DK-8000 Aarhus C, Denmark
U. Gupta
Affiliation:
FAO/WHO Collaborating Centre for Animal Mycoplasmas, Institute of Medical Microbiology, Bartholin Building, University of Aarhus, DK-8000 Aarhus C, Denmark
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Summary

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Two unidentified mycoplasmas, N3 and N11, isolated from the respiratory tract of horses, were found to cross-react with strains of M. mycoides subsp. mycoides in indirect immunofluorescence tests, growth-inhibition tests carried out by the running drop/agar-well method, and in complement-fixation and double immunodiffusion tests. Serologically, the equine mycoplasmas were not completely identical with any of the reference strains of M. mycoides with which they were compared. Their cultural characteristics, ability to digest coagulated serum and casein, and survival at 45 °C, however, suggested that they were more closely related to strains of M. mycoides subsp. mycoides, such as Y-goat, which are found in goats, than to strains of that subspecies which are pathogenic for cattle.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

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