Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia
The methane oxidation potential of active layer profiles of permafrost soils from the Lena Delta, Siberia, was studied with regard to its respond to temperature, and abundance and distribution of type I and type II methanotrophs. Our results indicate vertical shifts within the optimal methane oxidat...
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_245008 2023-05-15T17:07:31+02:00 Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia Liebner, S. Wagner, D. 0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum 2007 https://gfzpublic.gfz-potsdam.de/pubman/item/item_245008 unknown info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1462-2920.2006.01120.x https://gfzpublic.gfz-potsdam.de/pubman/item/item_245008 Environmental Microbiology 550 - Earth sciences info:eu-repo/semantics/article 2007 ftgfzpotsdam https://doi.org/10.1111/j.1462-2920.2006.01120.x 2022-09-14T05:56:50Z The methane oxidation potential of active layer profiles of permafrost soils from the Lena Delta, Siberia, was studied with regard to its respond to temperature, and abundance and distribution of type I and type II methanotrophs. Our results indicate vertical shifts within the optimal methane oxidation temperature and within the distribution of type I and type II methanotrophs. In the upper active layer, maximum methane oxidation potentials were detected at 21 °C. Deep active layer zones that are constantly exposed to temperatures below 2 °C showed a maximum potential to oxidise methane at 4 °C. Our results indicate a dominance of psychrophilic methanotrophs close to the permafrost table. Type I methanotrophs dominated throughout the active layer profiles but their number highly fluctuated with depth. In contrast, type II methanotrophs were constantly abundant through the whole active layer and displaced type I methanotrophs close to the permafrost table. No correlation between in-situ temperatures and the distribution of type I and type II methanotrophs was found. However, the distribution of type I and type II methanotrophs correlated significantly with in-situ methane concentrations. Beside vertical fluctuations, the abundance of methane oxidisers also fluctuated according to different geomorphic units. Similar methanotroph cell counts were detected in samples of a flood plain soil and a polygon rim soil, whereas cell counts in samples of a polygon centre soil were up to 100 times lower. Article in Journal/Newspaper lena delta permafrost Siberia GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Environmental Microbiology 9 1 107 117 |
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Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
topic |
550 - Earth sciences |
spellingShingle |
550 - Earth sciences Liebner, S. Wagner, D. Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
topic_facet |
550 - Earth sciences |
description |
The methane oxidation potential of active layer profiles of permafrost soils from the Lena Delta, Siberia, was studied with regard to its respond to temperature, and abundance and distribution of type I and type II methanotrophs. Our results indicate vertical shifts within the optimal methane oxidation temperature and within the distribution of type I and type II methanotrophs. In the upper active layer, maximum methane oxidation potentials were detected at 21 °C. Deep active layer zones that are constantly exposed to temperatures below 2 °C showed a maximum potential to oxidise methane at 4 °C. Our results indicate a dominance of psychrophilic methanotrophs close to the permafrost table. Type I methanotrophs dominated throughout the active layer profiles but their number highly fluctuated with depth. In contrast, type II methanotrophs were constantly abundant through the whole active layer and displaced type I methanotrophs close to the permafrost table. No correlation between in-situ temperatures and the distribution of type I and type II methanotrophs was found. However, the distribution of type I and type II methanotrophs correlated significantly with in-situ methane concentrations. Beside vertical fluctuations, the abundance of methane oxidisers also fluctuated according to different geomorphic units. Similar methanotroph cell counts were detected in samples of a flood plain soil and a polygon rim soil, whereas cell counts in samples of a polygon centre soil were up to 100 times lower. |
author2 |
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum |
format |
Article in Journal/Newspaper |
author |
Liebner, S. Wagner, D. |
author_facet |
Liebner, S. Wagner, D. |
author_sort |
Liebner, S. |
title |
Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
title_short |
Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
title_full |
Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
title_fullStr |
Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
title_full_unstemmed |
Abundance, Distribution and Potential Activity of Methane Oxidising Bacteria in Permafrost Soils from the Lena Delta, Siberia |
title_sort |
abundance, distribution and potential activity of methane oxidising bacteria in permafrost soils from the lena delta, siberia |
publishDate |
2007 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_245008 |
genre |
lena delta permafrost Siberia |
genre_facet |
lena delta permafrost Siberia |
op_source |
Environmental Microbiology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1462-2920.2006.01120.x https://gfzpublic.gfz-potsdam.de/pubman/item/item_245008 |
op_doi |
https://doi.org/10.1111/j.1462-2920.2006.01120.x |
container_title |
Environmental Microbiology |
container_volume |
9 |
container_issue |
1 |
container_start_page |
107 |
op_container_end_page |
117 |
_version_ |
1766062966546890752 |