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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Trueperella pyogenes
Category: Causes hemolysis
Etymology: Genus name: named after the German microbiologist Hans Georg Trüper
Species epithet: pus producing
Significance:  [Very important]   
Old Species Name(s):Corynebacterium pyogenes, Actinomyces pyogenes, Arcanobacterium pyogenes.
Taxonomy:
Phylum
Actinobacteria
Class
Actinobacteria
Order
Actinomycetales
Family
Actinomycetaceae 
Genus
Trueperella
Type Strain: C-100 = ATCC 19411 = CCUG 13230 = NCTC 5224
Macromorphology (smell):
     
 
Very small white, opaque and glistening colonies (0.2-0.5 and 0,2-1,0 mm in diameter after 24 and 48 h, respectively) with β-hemolysis (clear hemolysis) on e.g. bovine, equine and sheep blood agar.
Micromorphology: Small coccoid or pleomorphic nonmotile rods (0.5 x 2 µm), which appear singly, in pairs or short chains. The pairs are often V-shaped. They may also form filaments.
Gram +/Gram -:
 
G+
Metabolism: Facultatively anaerobic
Catalase/Oxidase:-/?
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+++--
L-arabinosecellobioseD-mannitolsalicintrehalose
-+--+
glycerolinulinraffinoseD-sorbitolstarch
---++
The above scheme may vary between different strains.
Spec. Char.:
Special Media:
Trueperella pyogenes  Trueperella pyogenes  
SELMA- or SELMA Plus plates are used for cultivation of samples from suspected mastitis cases.
Disease:
 
HostsDiseaseClinical picture
CattleMastitisPurulent mastitis difficult to treat, can be spread on pasture with flies.
Most animal speciesAbscessesPurulent infections and abscesses in various organs such as liver, kidneys, joints, umbilicus, endocard and lymph nodes. Occur often in mixed flora with anaerobic bacteria
Many animal speciesPneumoniaSevere pneumonia with multiple abscesses in the lung
Many animal speciesEndometritisPurulent endometritis
Virulence Factors:
Trueperella pyogenes  
Pyolysin (PLO), which lyse cells (cytolytic activity) of the host by forming transmembrane pores. Neuraminidases, adhesion factors like fimbriae, and ability to form biofilm, which all contribute to the colonization of the host tissues. See Fig. 1:8 on this page.
Genome Sequence:
Acc-noStrainSize (bp)GenomeRef.
CP012649 2012CQ-ZSH 2 295 822 1c + ? Nr 135

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X79225 (T) 1323 

Taxonomy/phylogeny:
 
Presently, this genus is composed of only five species, which are closely related to the genus Actinobaculum.
Reference(s): No. 148
Updated:2021-03-06

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