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Author Spotlight: Development of an Enhanced Protocol for Rapid and Accurate Isolation of Campylobacter from Food Products
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Differences in carbon source utilisation distinguish Campylobacter jejuni from Campylobacter coli
Sariqa Wagley1, Jane Newcombe2, Emma Laing3
1Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter, EX4 4QD, UK. S.Wagley@exeter.ac.uk.
BMC Microbiology
|October 29, 2014
Summary
Campylobacter jejuni and Campylobacter coli cause foodborne illness. Researchers found propionic acid utilization distinguishes C. coli from C. jejuni, offering new diagnostic methods.
Area of Science:
- Microbiology
- Genomics
- Metabolic analysis
Background:
- Campylobacter jejuni and Campylobacter coli are leading causes of bacterial foodborne gastroenteritis globally.
- Understanding their metabolic diversity is crucial for public health, especially in developed and developing nations.
Purpose of the Study:
- To characterize the metabolic diversity of C. jejuni and C. coli strains.
- To identify differences in carbon source utilization between these two species.
- To explore genotypic and phenotypic markers for distinguishing C. jejuni from C. coli.
Main Methods:
- Multi-genome analysis of clinical isolates.
- Biolog phenotyping for carbon source utilization.
- Polymerase Chain Reaction (PCR) screening for specific metabolic genes.
Main Results:
- Identified core and differentially utilized carbon sources across C. jejuni and C. coli strains.
- Discovered that propionic acid is exclusively utilized by C. coli strains.
- Confirmed the absence of propanoate metabolism genes in C. jejuni strains via PCR.
Conclusions:
- Propionic acid utilization serves as a reliable phenotypic marker to differentiate C. jejuni and C. coli.
- Genotypic methods targeting propanoate metabolism genes can also distinguish between these species.
- These findings offer potential diagnostic tools for Campylobacter species identification.
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