Trueperella pyogenes

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Trueperella pyogenes
Systematics
Department : Actinobacteria
Order : Actinomycetales
Subordination : Actinomycineae
Family : Actinomycetaceae
Genre : Trueperella
Type : Trueperella pyogenes
Scientific name
Trueperella pyogenes
( Glage 1903) Yassin et al. 2011

The Trueperella pyogenes bacterium is a common colonist of the skin and mucous membranes of many animal species, but is also one of the most important opportunistic pathogens in ruminants and other animal species. The cells vary in shape depending on the medium, for example cocci , but also short, rod-shaped cells appear. The size ranges from 0.2 to 0.9 × 0.3 to 2.5 micrometers. They are immobile and do not form spores .

Pathogens

Trueperella pyogenes is particularly important as a causative agent of udder infections. Heifers and dairy cows in particular during the drying off period can develop inflammation of the mammary glands ( T. pyogenes mastitis). The prognosis in such cases is usually poor.

Mixed infections with Peptococcus indolicus , Streptococcus dysgalactiae and other spore-free, gram-negative bacteria that live in the absence of oxygen ( anaerobically ) also occur. Abortion , endometritis , liver abscess , osteomyelitis , endocarditis and nephritis are also observed in cattle . Sheep, goats, pigs and humans can also become infected.

Individual evidence

  1. ↑ Cristina Pasqual Ramos, Geoff Foster, Matthew D. Collins: Phylogenetic Analysis of the Genus Actinornyces Based on 16s rRNA Gene Sequences: Description of Arcanobacteriurn phocae sp. nov., Arcanobacterium bernardiae comb. nov. and Arcanobacterium pyogenes comb. nov. In: IJSEM. January 1997, Volume 47, Number 1, pp. 46-53. On-line
  2. ↑ Eva Alešík: Effectiveness of antimicrobial agents in Arcanobacterium pyogenes: establishment and application of the sensitivity determination by means of broth microdilution as well as genotypic characterization of tetracycline-resistant strains. PhD thesis. Institute for Medical Microbiology, Infection and Disease Medicine of the Veterinary Faculty of the Ludwig Maximilians University in Munich, 2006. Online as PDF

literature

  • Wolfgang Baumgärtner: Pathohistology for veterinary medicine . 1st edition. Enke Verlag, Stuttgart 2007, ISBN 978-3-8304-1054-6 .
  • Michael Rolle, Anton Mayr (ed.): Medical microbiology, infection and epidemic theory. 8th edition. Enke Verlag, Stuttgart 2006, ISBN 3-8304-1060-3 .

Web links

  • Trueperella In: JP Euzéby: List of Prokaryotic Names with Standing in Nomenclature.