Effect of substrate interaction on oxidation of methane and benzene in enriched microbial consortia from landfill cover soil

Eun Hee Lee, Hyunjung Park, Kyung Suk Cho

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The interaction of methane and benzene during oxidation in enriched methane-oxidizing consortium (MOC) and in benzene-oxidizing consortium (BOC) from landfill cover soil was characterized. Oxidation of both methane and benzene occurred in the MOC due to the coexistence of bacteria responsible for benzene oxidation, as well as methanotrophs, whereas in the BOC, only benzene was oxidized, not methane. Methane oxidation rates in the MOC were decreased with increasing benzene/methane ratio (mol/mol), indicating its methane oxidation was inhibited by the benzene coexistence. Benzene oxidation rates in the MOC, however, were increased with increasing benzene/methane ratio. The benzene oxidation in the BOC was not affected by the coexistence of methane or by the ratio of methane/benzene ratio (mol/mol). No effect of methane or benzene was found on the dynamics of functional genes, such as particulate methane monooxygenase and toluene monooxygenase, in association with oxidation of methane and benzene in the MOC and BOC.

Original languageEnglish
Pages (from-to)997-1007
Number of pages11
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume46
Issue number9
DOIs
StatePublished - Jan 2011

Keywords

  • benzene
  • biodegradation
  • interaction
  • Methane
  • particulate methane monooxygenase (pmoA)
  • toluene monooxygenase (tmoA)

Fingerprint

Dive into the research topics of 'Effect of substrate interaction on oxidation of methane and benzene in enriched microbial consortia from landfill cover soil'. Together they form a unique fingerprint.

Cite this