Methanolobus zinderi sp. nov., a methylotrophic methanogen isolated from a deep subsurface coal seam

Sebastian N. Doerfert, Matthew Reichlen, Prabha Iyer, Mingyu Wang, James G. Ferry

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

A methanogenic organism from the domain Archaea (SD1T) was isolated from saline water released from a coal seam located 926 m below the surface via a methane-producing well near Monroe, Louisiana, USA. Growth and methanogenesis were supported with methanol, monomethylamine, dimethylamine or trimethylamine, but not with dimethylsulfide, formate, acetate or H2/CO2. Cells grew in high-salt minimal medium but growth was stimulated with yeast extract or tryptone. Cells were single, non-motile, irregular coccoids 0.5-1.0 μm in diameter and the cell wall contained protein. Conditions for the maximum rate of growth were 40-50 °C, 0.2-0.6 M NaCl, 100-≥200 mM MgCl2, and pH 7.0-8.0. The G+C content of the genomic DNA was 42 ± 1 mol%. A comparison of 16S rRNA gene sequences indicated that strain SD1T was most closely related to Methanolobus oregonensis DSM 5435T with 96% gene sequence similarity. It is proposed that strain SD1T represents a novel species, Methanolobus zinderi sp. nov. The type strain is SD1T (=ATCC BAA-1601T=DSM 21339T).

Original languageEnglish (US)
Pages (from-to)1064-1069
Number of pages6
JournalInternational journal of systematic and evolutionary microbiology
Volume59
Issue number5
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

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