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Molecular characterization of 2-chlorobiphenyl degrading Stenotrophomonas maltophilia GS-103.

Authors
  • Somaraja, P K
  • Gayathri, D
  • Ramaiah, N
Type
Published Article
Journal
Bulletin of Environmental Contamination and Toxicology
Publisher
Springer-Verlag
Publication Date
Aug 01, 2013
Volume
91
Issue
2
Pages
148–153
Identifiers
DOI: 10.1007/s00128-013-1044-1
PMID: 23801320
Source
Medline
License
Unknown

Abstract

The catabolic potential of transformer oil contaminated soil bacteria in aerobic degradation of polychlorinated biphenyls (PCB) were assessed. Transformer oil contaminated soil sample was subjected to microcosm enrichment experiments (PAS medium/biphenyl as sole carbon source). PCB-degrading activity of the enrichment cultures in PAS medium with the addition of 2-chlorobiphenyl were analysed by GC-MS indicated that, although the isolates differed in PCB-degrading capabilities, all of the enrichment cultures expressed activity toward at least some of the lower chlorinated congeners. Biphenyl-utilizing bacteria isolated from the most active PCB-degrading mixed cultures showed little taxonomic diversity and identified as Stenotrophomonas maltophilia GS-103.

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