Acetoclastic and hydrogenotrophic methane production and methanogenic populations in an acidic West-Siberian peat bog.

  title={Acetoclastic and hydrogenotrophic methane production and methanogenic populations in an acidic West-Siberian peat bog.},
  author={Oleg Kotsyurbenko and K J Chin and Mikhail Vladimirovich Glagolev and Stephan Stubner and Maria V Simankova and A. N. Nozhevnikova and Ralf Conrad},
  journal={Environmental microbiology},
  volume={6 11},
Sites in the West Siberian peat bog 'Bakchar' were acidic (pH 4.2-4.8), low in nutrients, and emitted CH4 at rates of 0.2-1.5 mmol m(-2) h(-1). The vertical profile of delta13CH4 and delta13CO2 dissolved in the porewater indicated increasing isotope fractionation and thus increasing contribution of H2/CO2-dependent methanogenesis with depth. The anaerobic microbial community at 30-50 cm below the water table produced CH4 with optimum activity at 20-25 degrees C and pH 5.0-5.5 respectively… 

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