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Microbial oxidation of CH4 at high partial pressures in an organic landfill cover soil under different moisture regimes

Börjesson, Gunnar ; Sundh, Ingvar ; Tunlid, Anders LU ; Frostegård, Åsa and Svensson, Bo H. LU (1998) In FEMS Microbiology Ecology 26(3). p.207-217
Abstract

The uptake and utilization of CH4 at high concentrations (5-18% vol.) and different soil moistures were followed for samples from a landfill cover soil with a high organic matter content. Measurements of the utilization of CH4 and O2, and production of CO2 indicated that the activity of methanotrophic organisms accounted for most of the O2 respiration. At water saturation, CH4 oxidation rates decreased with time, probably because NH4/+ accumulated. Denitrification rates, estimated based on both N2 and N2O production, were positively related to soil moisture and only slightly influenced by the extent of CH4 oxidation.... (More)

The uptake and utilization of CH4 at high concentrations (5-18% vol.) and different soil moistures were followed for samples from a landfill cover soil with a high organic matter content. Measurements of the utilization of CH4 and O2, and production of CO2 indicated that the activity of methanotrophic organisms accounted for most of the O2 respiration. At water saturation, CH4 oxidation rates decreased with time, probably because NH4/+ accumulated. Denitrification rates, estimated based on both N2 and N2O production, were positively related to soil moisture and only slightly influenced by the extent of CH4 oxidation. Total phospholipid fatty acid concentrations increased, and concentrations of phospholipid fatty acids, typical for obligate methanotrophic bacteria (e.g. 16:1ω8 and 18:1ω8), increased in the CH4-amended samples, indicating growth of both type I and type II methanotrophs.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ammonium, Denitrification, Methane oxidation, Methanotroph, Nitrogen, Nitrous oxide, Phospholipid fatty acid
in
FEMS Microbiology Ecology
volume
26
issue
3
pages
207 - 217
publisher
Oxford University Press
external identifiers
  • scopus:0242633857
ISSN
0168-6496
DOI
10.1016/S0168-6496(98)00036-1
language
English
LU publication?
yes
id
a10fe277-f9e3-4405-8cdc-12e42547996b
date added to LUP
2019-10-23 16:56:28
date last changed
2022-04-10 22:00:56
@article{a10fe277-f9e3-4405-8cdc-12e42547996b,
  abstract     = {{<p>The uptake and utilization of CH<sub>4</sub> at high concentrations (5-18% vol.) and different soil moistures were followed for samples from a landfill cover soil with a high organic matter content. Measurements of the utilization of CH<sub>4</sub> and O<sub>2</sub>, and production of CO<sub>2</sub> indicated that the activity of methanotrophic organisms accounted for most of the O<sub>2</sub> respiration. At water saturation, CH<sub>4</sub> oxidation rates decreased with time, probably because NH<sub>4</sub>/<sup>+</sup> accumulated. Denitrification rates, estimated based on both N<sub>2</sub> and N<sub>2</sub>O production, were positively related to soil moisture and only slightly influenced by the extent of CH<sub>4</sub> oxidation. Total phospholipid fatty acid concentrations increased, and concentrations of phospholipid fatty acids, typical for obligate methanotrophic bacteria (e.g. 16:1ω8 and 18:1ω8), increased in the CH<sub>4</sub>-amended samples, indicating growth of both type I and type II methanotrophs.</p>}},
  author       = {{Börjesson, Gunnar and Sundh, Ingvar and Tunlid, Anders and Frostegård, Åsa and Svensson, Bo H.}},
  issn         = {{0168-6496}},
  keywords     = {{Ammonium; Denitrification; Methane oxidation; Methanotroph; Nitrogen; Nitrous oxide; Phospholipid fatty acid}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{3}},
  pages        = {{207--217}},
  publisher    = {{Oxford University Press}},
  series       = {{FEMS Microbiology Ecology}},
  title        = {{Microbial oxidation of CH4 at high partial pressures in an organic landfill cover soil under different moisture regimes}},
  url          = {{http://dx.doi.org/10.1016/S0168-6496(98)00036-1}},
  doi          = {{10.1016/S0168-6496(98)00036-1}},
  volume       = {{26}},
  year         = {{1998}},
}