Abundance, distribution and potential activity of methane oxidizing 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...
Published in: | Environmental Microbiology |
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ftoceanrep:oai:oceanrep.geomar.de:27770 2023-05-15T17:07:31+02:00 Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia Liebner, Susanne Wagner, Dirk 2007 text https://oceanrep.geomar.de/id/eprint/27770/ https://oceanrep.geomar.de/id/eprint/27770/1/2007_Liebner-Wagner_EnvirMicrobiol-9.pdf https://doi.org/10.1111/j.1462-2920.2006.01120.x en eng Wiley https://oceanrep.geomar.de/id/eprint/27770/1/2007_Liebner-Wagner_EnvirMicrobiol-9.pdf Liebner, S. and Wagner, D. (2007) Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia. Open Access Environmental Microbiology, 9 (1). pp. 107-117. DOI 10.1111/j.1462-2920.2006.01120.x <https://doi.org/10.1111/j.1462-2920.2006.01120.x>. doi:10.1111/j.1462-2920.2006.01120.x cc_by_nc info:eu-repo/semantics/openAccess Article PeerReviewed 2007 ftoceanrep https://doi.org/10.1111/j.1462-2920.2006.01120.x 2023-04-07T15:17:55Z 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 oxidize 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 strongly 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 oxidizers also fluctuated according to different geomorphic units. Similar methanotroph cell counts were detected in samples of a flood plain and a polygon rim, whereas cell counts in samples of a polygon centre were up to 100 times lower. Article in Journal/Newspaper lena delta permafrost Siberia OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Environmental Microbiology 9 1 107 117 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
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 oxidize 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 strongly 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 oxidizers also fluctuated according to different geomorphic units. Similar methanotroph cell counts were detected in samples of a flood plain and a polygon rim, whereas cell counts in samples of a polygon centre were up to 100 times lower. |
format |
Article in Journal/Newspaper |
author |
Liebner, Susanne Wagner, Dirk |
spellingShingle |
Liebner, Susanne Wagner, Dirk Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
author_facet |
Liebner, Susanne Wagner, Dirk |
author_sort |
Liebner, Susanne |
title |
Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
title_short |
Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
title_full |
Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
title_fullStr |
Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
title_full_unstemmed |
Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia |
title_sort |
abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the lena delta, siberia |
publisher |
Wiley |
publishDate |
2007 |
url |
https://oceanrep.geomar.de/id/eprint/27770/ https://oceanrep.geomar.de/id/eprint/27770/1/2007_Liebner-Wagner_EnvirMicrobiol-9.pdf https://doi.org/10.1111/j.1462-2920.2006.01120.x |
genre |
lena delta permafrost Siberia |
genre_facet |
lena delta permafrost Siberia |
op_relation |
https://oceanrep.geomar.de/id/eprint/27770/1/2007_Liebner-Wagner_EnvirMicrobiol-9.pdf Liebner, S. and Wagner, D. (2007) Abundance, distribution and potential activity of methane oxidizing bacteria in permafrost soils from the Lena Delta, Siberia. Open Access Environmental Microbiology, 9 (1). pp. 107-117. DOI 10.1111/j.1462-2920.2006.01120.x <https://doi.org/10.1111/j.1462-2920.2006.01120.x>. doi:10.1111/j.1462-2920.2006.01120.x |
op_rights |
cc_by_nc info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/j.1462-2920.2006.01120.x |
container_title |
Environmental Microbiology |
container_volume |
9 |
container_issue |
1 |
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107 |
op_container_end_page |
117 |
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1766062965305376768 |