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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Campylobacter fetus subsp. venerealis
Categories: Motile; notifiable diseases and bacteria
Etymology: Genus name: a curved rod.
Species epithet: of a fruit.
Subspecies epithet: of Venus (the goddess of love).
Significance:  [Very important]   
Alternative Species Name(s):Vibrio fetus subsp. venerealis
Taxonomy:
Phylum
Proteobacteria
Class
Epsilonproteobacteria
Order
Campylobacterales
Family
Campylobacteraceae 
Genus
Campylobacter
Type Strain: ATCC 19438 = CCUG 538 and 33899 = NCTC 10354.
Macromorphology (smell): Small rough colonies (1-2 mm i diameter) with irregular edge. Opaque and with to tan.
Micromorphology: Curved or helical and motile rod (0.2-0.3 x 1.5-5.0 µm).
Gram +/Gram -:G-
Metabolism: Microaerophilic
Catalase/Oxidase:+/+
Other Enzymes: Hippuricase - (hippurat -), urease -
Biochemical Tests: Hydrogen sulfide (H2S) - (cf. other Campylobacter spp.)
Fermentation of carbohydrates: Campylobacter spp. can neither ferment nor oxidize carbohydrates.
Spec. Char.: Optimal growth temperature: about 37°C.
Disease:
HostsDiseaseClinical picture
CattleBovine genital campylobacteriosisAbortion (endemic), mostly in third trimester, early embryonic death. Bull asymptomatic carrier.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
DQ174131 NCTC 10354T 1 343  

Taxonomy/phylogeny:
   
About 25 species have been described within in the genus Campylobacter and some of these are further divided into subspecies. This genus is closely related to the following genera: Sulfurospirillum, Arcobacter and Helcobacter.C. fetus is closely related to C.jejuni, C. hyointestinalis, C. coli and C. lari.
Legislation: Bovine genital campylobacterios is a notifiable disease in Sweden and should be reported to the Swedish Board of Agriculture.
Updated:2022-01-09

News

New names of taxa within the classification category phylum

During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.

Published 2022-09-28. Read more...

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