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Veterinary bacteriology


Species/Subspecies: Peptoniphilus indolicus
Category: Causes hemolysis
Etymology: Genus name: peptone loving.
Species epithet: indol producing.
Significance:  [Of minor importance]   
Alternative Species Name(s):Peptostreptococcus indolicus
Taxonomy:
Phylum
Firmicutes
Class
Clostridia
Order
Clostridiales
Family
Peptostreptococcaceae 
Genus
Peptoniphilus
Type Strain: ATCC 29427.
Macromorphology (smell):
 
Small (0.5-1.0 mm), grayish colonies. Most strains give no hemolysis.
Micromorphology: Cocci (0.5-0.6 µm in diameter), which appear single, in pairs, short chains or small clusters.
Gram +/Gram -:G+
Metabolism: Obligately anaerobic
Catalase/Oxidase:-/-
Other Enzymes: Coagulase + (most strains), tryptophanase (+), urease -.
Fermentation of carbohydrates: Peptoniphilus spp. do not ferment carbohydrates.
Spec. Char.:
Disease:Bovine summer mastitis (in combination with Trueperella pyogenes).
HostsDiseaseClinical picture
CattleMastitisSummer mastitis often in combination with Trueperella pyogenes
CalfArhtritisOften polyarthritis with infection in multiple joints
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
D14147 (T) 1372  

Taxonomy/phylogeny:
 
About 50 species have been described within the genus Peptoniphilus and this genus belong to the order Clostridiales. However, P. indolicus is not that closely related to clostridia.
Updated:2021-06-14

News

The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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