Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Characterization of Organochlorine Insecticide Endosulfan-Degrading Bacterium Isolated from Seaside Sediment

갯벌에서 분리한 유기염소계 살충제 Endosulfan 분해 세균의 특성

  • Park, Mi-Eun (Department of Ecological Engineering, Pukyong National University) ;
  • Kim, Young-Mog (Department of Food Science and Technology, Pukyong National University) ;
  • Chung, Yong-Hyun (Department of Ecological Engineering, Pukyong National University)
  • Received : 2010.12.11
  • Accepted : 2011.06.08
  • Published : 2011.06.30
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Abstract

An endosulfan degrading bacterial strain, K-1321, was isolated by endosulfan-enrichment culture from a seaside sediment collected at Dadaepo Beach, Busan, Korea. The strain was identified as a Serratia sp. based on the results of morphological, biochemical and 16S rDNA homology analyses. Serratia sp. K-1321 was able to completely degrade 50 ppm endosulfan in culture media and soil within 6 weeks at $25^{\circ}C$. GC/MS analysis revealed that endosulfan diol was an intermediate of the bacterial endosulfan degradation. Considering the above results, we concluded that Serratia sp. K-1321 utilized endosulfan as a carbon source and metabolized endosulfan via a less toxic pathway, such as the formation of endosulfan diol as an intermediate.

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References

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