Characterization of methane oxidation by a methanotroph isolated from a landfill cover soil, South Korea

Eun Hee Lee, Taewoo Yi, Kyung Eun Moon, Hyunjung Park, Hee Wook Ryu, Kyung Suk Cho

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33 Scopus citations

Abstract

A methane-oxidizing bacterium was isolated from the enriched culture of a landfill cover soil. The closest relative of the isolate, designated M6, is Methylocystis sp. Based on a kinetic analysis, the maximum specific methane oxidation rate and saturation constant were 4.93 mmol·gdry cell weight -1·h -1 and 23 μM, respectively. This was the first time a kinetic analysis was performed using pure methanotrophic culture. The methane oxidation by M6 was investigated in the presence of aromatic (m- and pxylene and ethylbenzene) or sulfur (hydrogen sulfide, dimethyl sulfide, methanthiol) compounds. The methane oxidation was inhibited by the presence of aromatic or sulfur compounds.

Original languageEnglish
Pages (from-to)753-756
Number of pages4
JournalJournal of Microbiology and Biotechnology
Volume21
Issue number7
DOIs
StatePublished - 28 Jul 2011

Keywords

  • Aromatic compound
  • Methane oxidation
  • Methylocystis sp.
  • Sulfur compounds

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