A molecular ecological approach to the detection and designation of the etiological agents of a model polymicrobial disease

John Antiabong, Daniel Jardine, Wayne Boardman, Melissa Brown, Andrew Ball

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    The application of the original Koch postulates and the molecular Koch postulates in the definition of the etiological agents of polymicrobial diseases has received little or no attention. In the present study, denaturing gradient gel electrophoresis (DGGE) of oral samples (n = 3) from each of 3 categories of animals (healthy, diseased [gingivitis], and then oxytetracycline-treated) was used and revealed different bacterial community structures in a model polymicrobial disease (gingivitis) and after clinical cure. Potential microbes associated with the disease and belonging to the following families were identified: Fusobacteriaceae, Porphyromonadaceae, Flavobacteriaceae, Alcanivoracaceae, Bacteroidaceae, Xanthomonadaceae, and Neisseriaceae. Liquid chromatography-mass spectrophotometric analysis of culturable anaerobic bacteria culture supernatant revealed 3 major compounds (2-hydroxycaproic acid, phenyllactic acid, and indole acetic acid) that differentiated the healthy and disease groups. Results indicate that different microbial community structures were associated with the healthy and disease oral states. The results demonstrate the potential of DGGE as a tool in the detection and designation of etiological agents of polymicrobial diseases.

    Original languageEnglish
    Pages (from-to)467-472
    Number of pages6
    JournalJOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION
    Volume25
    Issue number4
    DOIs
    Publication statusPublished - Jul 2013

    Keywords

    • Denaturing gradient gel electrophoresis
    • etiology
    • metabolite
    • molecular Koch postulate
    • polymicrobial disease

    Fingerprint Dive into the research topics of 'A molecular ecological approach to the detection and designation of the etiological agents of a model polymicrobial disease'. Together they form a unique fingerprint.

    Cite this