Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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A New Intermediate in the Degradation of Carbofuran by Sphingomonas sp. Strain SB5

  • Park Myung-Ryeol (Division of Applied Bioscience and Biotechnology, Institute of Agriculture Science and Technology, College of Agriculture and Life Sciences, Chonnam National University) ;
  • Lee Sun-Woo (Department of Chemistry, College of Natural Science, Chonnam National University) ;
  • Han Tae-Ho (Division of Plant Biotechnology, College of Agriculture and Life Sciences, Chonnam National University) ;
  • Oh Byung-Tack (Department of Environmental Sciences and Biotechnology, Hallym University) ;
  • Shim Jae-Han (Division of Applied Bioscience and Biotechnology, Institute of Agriculture Science and Technology, College of Agriculture and Life Sciences, Chonnam National University) ;
  • Kim In-Seon (Division of Applied Bioscience and Biotechnology, Institute of Agriculture Science and Technology, College of Agriculture and Life Sciences, Chonnam National University)
  • Published : 2006.08.01
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Abstract

Sphingomonas sp. strain SB5 could degrade carbofuran and carbofuran-7-phenol to a hydrolytic product, 2-hydroxy-3-(3-methlypropan-2-o1)phenol, and several red metabolites. However, the chemical structures of the red metabolites have largely remained unidentified. In this study, we identified the structure of one of the red metabolites as 5-(2-hydroxy-2-methyl-propyl)-2,2-dimethyl- 2,3-dihydro-naphtho[2,3-6]furan-4,6,7,9-tetrone by using mass spectrometric and NMR ($^1$H, $^{13}$C) analyses. It is suggested that the red metabolite resulted from condensation of some metabolites in the degradation of 2-hydroxy-3-(3-methlypropan-2-o1)phenol, a hydrolytic product derived from carbofuran. To our knowledge, this is the first paper to report a red metabolite in bacterial degradation of the insecticide carbofuran.

Keywords

References

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