Metagenomics Combined with Stable Isotope Probe (SIP) for the Discovery of Novel Dehalogenases Producing Bacteria

Hemen Sarma*, Sanket J. Joshi

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

8 Citations (Scopus)


Halogenated compounds are one of the largest groups of environmental-hazardous chemicals. The removal of the halogen atom from the substrate is possible by the catalytic activity of a type of enzyme called dehalogenase. Hydrolytic dehalogenases are suggested to be a good biodegradation catalyst for halogenated compounds with potential bioremediation applications. Therefore, the identification of possible bacterial strains that produce dehalogenase is of great importance. Soil microorganisms that are regularly exposed to halogenated pesticides are a major source of hydrolytic dehalogenase. Their proper identification may be useful in the production of high-quality dehalogenase. DNA stable isotope probing (DNA-SIP) is quite a useful technique for the identification of active microorganisms that assimilate specific carbon substrates and nutrients. Metagenomics combined with a stable isotope probe (SIP) technique could therefore be used to detect bacterial dehalogenases in pesticides exposed agricultural soil.

Original languageEnglish
Pages (from-to)478-484
Number of pages7
JournalBulletin of Environmental Contamination and Toxicology
Issue number3
Publication statusAccepted/In press - 2020


  • DNA stable isotope probing (DNA-SIP)
  • Halogenated compounds
  • Hydrolytic dehalogenases
  • Microbial bioremediation

ASJC Scopus subject areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis


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