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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Campylobacter upsaliensis
Categories: Motile; notifiable diseases and bacteria
Etymology: Genus name: a curved rod.
Species epithet: of Uppsala, where the bacterium was first described at the Swedish University of Agricultural Sciences (SLU).
Significance:  [Important]   
Taxonomy:
Phylum
Campylobacterota
Class
Campylobacteria
Order
Campylobacterales
Family
Campylobacteraceae 
Genus
Campylobacter
Type Strain: C231 = ATCC 43954 = CCUG 14913 = NCTC 11541.
Macromorphology (smell):
 
Small pinpoint like colonies, which are non-hemolytic and swarm on moist agar.
Micromorphology: Curved or helical and motile rod (0.3-0.4 x 1.2-3.0 µm).
Gram +/Gram -:G-
Metabolism: Microaerophilic
Catalase/Oxidase:-/+
Other Enzymes: Hippuricase - (= hippurate -), urease -
Biochemical Tests: Hydrogen sulfide (H2S) +
Fermentation of carbohydrates: Campylobacter spp. can neither ferment nor oxidize carbohydrates.
Spec. Char.: Thermotolerant. Does not grow at 25°C, but at 42°C.
Reservoir: Dogs and cats
Disease:Enteritis
Hosts: Dog? cat? and humans?
Clinical Picture:
Diagnostics:Direct culture on selective media or culture after selective enrichment. Confirmation by MALDI-TOF, PCR or other molecular methods. Biochemical tests can also be used for confirmation.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
L14628 CCUG 14913T 1 460  

Taxonomy/phylogeny:
   
About 40 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. upsaliensis is closely related to C. helveticus and C. avium.
Legislation:

In Sweden, human campylobacteriosis is notifiable to the Public Health Agency of Sweden.

Reference(s): No. 47
Updated:2023-03-22

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The revised taxonomy of the mollicutes (mycoplasmas)

About 2 years ago, the taxonomy of mycoplasmas was revised at VetBact, because a research group had proposed that 5 new genera should be included together with the genus Mycoplasma. This also had consequences for higher taxa within the phylum, which was then called Tenericutes. Now another group of researchers has suggested that the new names should be rejected.

Published 2023-10-03. Read more...

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