Halopicolinic acids, novel products arising through the degradation of chloro- and bromobiphenyl by Sphingomonas paucimobilis BPSI-3

Annette D. Davison*, Peter Karuso, Daniel R. Jardine, Duncan A. Veal

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Sphingomonas paucimobilis BPSI-3 was previously isolated from a mixed microbial consortium growing on biphenyl as the sole source of carbon and energy. Transformation of 4-chlorobiphenyl (4CBP) was demonstrated by this strain, although little or no growth was observed. In minimal salts medium supplemented with 4CBP or bromobiphenyl and dextrose, yellow coloured product(s) were rapidly formed. Gas chromatography-mass spectrometry (GC-MS) revealed single ring N-heterocyclic compounds that were identified as halopicolinic acids. We believe this to be the first report of such compounds being formed via biological transformation of halobiphenyls. A mechanism is proposed for their formation.

    Original languageEnglish
    Pages (from-to)66-71
    Number of pages6
    JournalCanadian Journal of Microbiology
    Volume42
    Issue number1
    DOIs
    Publication statusPublished - 1996

    Keywords

    • bioremediation
    • halobiphenyl degradation
    • halopicolinic acid
    • Sphingomonas paucimobilis BPSI-3

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