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 journalArticle

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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