Treponema spp

From Dog
Treponema spp under light microscopy[1]

Treponema spp are a Gram-negative, aerobic spirochaete normally found in the oropharynx and gastrointestinal tract of dogs[2].

Species which are pathogenic to dogs include:

  • Treponema denticola [3]
  • Treponema socranskii[4]

Although these bacteria are normally nonpathogenic to dogs, they have been associated with periodontitis, and zoonotic bite wounds to humans.

Similar to human periodontitis, treponemes are found more frequently with higher degrees of periodontitis[5].

Other oropharyneal-dwelling bacteria are considered more pathogenic, such as Porphyromonas spp, Capnocytophaga spp, Prevotella spp, Aggregatibacter spp, Tannerella spp, Campylobacter spp and Eikenella spp[6].

References

  1. Science Commons
  2. Kato Y et al (2011) Molecular detection of human periodontal pathogens in oral swab specimens from dogs in Japan. J Vet Dent 28(2):84-89
  3. Yamasaki Y et al (2012) Distribution of periodontopathic bacterial species in dogs and their owners. Arch Oral Biol 57(9):1183-1188
  4. Correia FF et al (2003) Two paralogous families of a two-gene subtilisin operon are widely distributed in oral treponemes. J Bacteriol 185(23):6860-6869
  5. Nordhoff M et al (2008) Association of Treponema spp. with canine periodontitis. Vet Microbiol 127(3-4):334-342
  6. Yamasaki Y et al (2012) Distribution of periodontopathic bacterial species in dogs and their owners. Arch Oral Biol 57(9):1183-1188