Veterinary Research Communications

, Volume 25, Issue 1, pp 1–12 | Cite as

Biochemical Characterization of Mycoplasma bovirhinis, Mycoplasma dispar and Recent Bovine Isolates of Mycoplasma canis

  • R. Megid
  • R.A.J. Nicholas
  • R.J. Miles


The pattern and kinetics of substrate utilization by the type strains of Mycoplasma canis, M. bovirhinis and M. dispar and ten recent M. canis isolates from cattle were determined. Metabolism of a range of sugars and organic acids by M. dispar was detectable by measurement of oxygen uptake. Organic acids were not utilized by M. bovirhinis or M. canis, and there was no oxygen uptake during metabolism of glucose or other sugars, as monitored by a pH-change method. The M. canis strains varied in their ability to metabolize sugars; seven of the isolates from cattle had the distinctive ability to metabolize sucrose, and one isolate, plus the type strain (from a dog), metabolized N-acetylglucosamine. The M. bovirhinis strain metabolized maltose. However, all the test strains oxidized glycerol at high rates and with a high affinity. Oxidation of glycerol has been reported for other mycoplasmas from the bovine respiratory tract and leads to the production of hydrogen peroxide, a potential virulence factor.

cattle glycerol hydrogen peroxide metabolism Mycoplasma bovirhinis Mycoplasma canis Mycoplasma dispar organic acids sugars 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • R. Megid
    • 1
  • R.A.J. Nicholas
    • 2
  • R.J. Miles
    • 1
  1. 1.Division of Life SciencesKing's College LondonLondonUK
  2. 2.Veterinary Laboratories Agency (Weybridge)SurreyUK

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