Trueperella pyogenes

Trueperella pyogenes is a species of bacteria that are nonmotile, facultatively anaerobic, and gram-positive. The cells typically measure 0.5 by 2.0 μm. They appear as pleomorphic or coccoid rods. They tend to be grouped singly, or in short chains. Sometimes, they are grouped into V-shaped pairs.[2]

Trueperella pyogenes
Scientific classification
Domain:
Bacteria
Phylum:
Actinobacteria
Class:
Actinobacteria
Order:
Actinomycetales
Family:
Actinomycetaceae
Genus:
Trueperella
Species:
T. pyogenes
Binomial name
Trueperella pyogenes
(Glage 1903)[1]
Synonyms[1][2]
  • Actinomyces pyogenes
  • Arcanobacterium pyogenes
  • Bacillus pyogenes
  • Corynebacterium pyogenes

T. pyogenes is found in the urogenital, gastrointestinal, and upper respiratory tracts of cattle, goats, horses, musk deer, pigs, and sheep, in which it may cause abscesses, mastitis, metritis, and pneumonia.[2][3] It can thrive in either anaerobic or aerobic environments, but is ideally suited to one with high (about 7%) levels of carbon dioxide.[3]

The species was originally classified as Corynebacterium pyogenes then Actinomyces pyogenes,[4] then Arcanobacterium pyogenes,[4] now Trueperella pyogenes.[5] When the genus Arcanobacterium was split into two (Arcanobacterium and Trueperella gen. nov.),[5] the new genus name was chosen in honor of the German microbiologist Hans G. Trüper.[2] The specific name pyogenes is used in various bacterial genera and was derived from the Greek word puon or Latin word pyum, and the suffix -genes, yielding pyogenes, meaning "pus-producing".[1]

Although it can infect a wide variety of tissues, Trueperella pyogenes is the most common cause of "Summer mastitis" in cattle, and the most common cause of pyometra in dogs.

References
  1. "Trueperella". LPSN. Retrieved 28 February 2015.
  2. "Trueperella pyogenes". VetBact. Retrieved 28 February 2015.
  3. Machado, Vinicius S.; Bicalho, Rodrigo C. (1 May 2014). "Complete Genome Sequence of Trueperella pyogenes, an Important Opportunistic Pathogen of Livestock" (PDF). Genome Announcements. American Society for Microbiology. 2 (2). doi:10.1128/genomeA.00400-14. PMC 4007991. PMID 24786956. Retrieved 28 February 2015.
  4. Pascual Ramos, C; Foster, G; Collins, MD (1997), "Phylogenetic analysis of the genus Actinomyces based on 16S rRNA gene sequences: description of Arcanobacterium phocae sp. nov., Arcanobacterium bernardiae comb. nov., and Arcanobacterium pyogenes comb. nov.", International Journal of Systematic Bacteriology, 47 (1): 46–53, doi:10.1099/00207713-47-1-46, ISSN 0020-7713, PMID 8995800.
  5. Yassin, AF; et al. (2011), "Comparative chemotaxonomic and phylogenetic studies on the genus Arcanobacterium Collins et al. 1982 emend. Lehnen et al. 2006: proposal for Trueperella gen. nov. and emended description of the genus Arcanobacterium", Int J Syst Evol Microbiol, 61 (6): 1265–1274, doi:10.1099/ijs.0.020032-0, PMID 20622055.


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