Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment

The distribution of bacteriohopanepolyols (BHPs) and intact polar membrane lipids (IPLs) was studied in different soil profiles and in fluvial and marine sediments along the pathway of transport in a small catchment in the high Arctic at Ny-Alesund, Svalbard (79 degrees N, 12 degrees E). Both groups...

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Main Authors: Rethemeyer, Janet, Schubotz, Florence, Talbot, Helen M., Cooke, Martin P., Hinrichs, Kai-Uwe, Mollenhauer, Gesine
Format: Article in Journal/Newspaper
Language:English
Published: PERGAMON-ELSEVIER SCIENCE LTD 2010
Subjects:
Online Access:https://kups.ub.uni-koeln.de/49612/
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spelling ftubkoeln:oai:USBKOELN.ub.uni-koeln.de:49612 2023-05-15T14:26:46+02:00 Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment Rethemeyer, Janet Schubotz, Florence Talbot, Helen M. Cooke, Martin P. Hinrichs, Kai-Uwe Mollenhauer, Gesine 2010 https://kups.ub.uni-koeln.de/49612/ eng eng PERGAMON-ELSEVIER SCIENCE LTD Rethemeyer, Janet orcid:0000-0001-6698-4186 , Schubotz, Florence, Talbot, Helen M., Cooke, Martin P., Hinrichs, Kai-Uwe orcid:0000-0002-0739-9291 and Mollenhauer, Gesine orcid:0000-0001-5138-564X (2010). Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment. Org. Geochem., 41 (10). S. 1130 - 1146. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0146-6380 ddc:no doc-type:article publishedVersion 2010 ftubkoeln 2022-11-09T07:30:44Z The distribution of bacteriohopanepolyols (BHPs) and intact polar membrane lipids (IPLs) was studied in different soil profiles and in fluvial and marine sediments along the pathway of transport in a small catchment in the high Arctic at Ny-Alesund, Svalbard (79 degrees N, 12 degrees E). Both groups of cellular membrane lipids have been used as biomarkers for determining major microbial groups and biogeochemical processes in natural environments. Little is known about their distribution and usefulness as environmental markers in the Arctic. In this study, we show that both membrane lipid groups are variably distributed in the drainage area of the Broggerbreen Glacier, with highest abundance and diversity in the organic mat overlying the mineral soils, as well as in mossy surface soil. The BHP and IPL composition and abundance both indicate a larger community of phototrophic bacteria in the organic mats and fluvial sediments. The greater diversity and abundance of BHPs relative to IPLs in sub-soils, including probable markers for cyanobacteria, suggest a greater resistance to degradation. In contrast, IPL concentration decreased strongly with soil depth, pointing to their rapid degradation. Bacterial IPLs are thus thought to reflect more reliably the biomass of viable phototrophic bacteria. The high concentrations of proposed soil marker BHPs, adenosylhopane and related structures vs. published results and their relative increase with soil depth suggest better preservation and more effective accumulation of the compounds at low temperature. (C) 2010 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Arctic Arctic glacier permafrost Svalbard Cologne University: KUPS Arctic Svalbard
institution Open Polar
collection Cologne University: KUPS
op_collection_id ftubkoeln
language English
topic ddc:no
spellingShingle ddc:no
Rethemeyer, Janet
Schubotz, Florence
Talbot, Helen M.
Cooke, Martin P.
Hinrichs, Kai-Uwe
Mollenhauer, Gesine
Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
topic_facet ddc:no
description The distribution of bacteriohopanepolyols (BHPs) and intact polar membrane lipids (IPLs) was studied in different soil profiles and in fluvial and marine sediments along the pathway of transport in a small catchment in the high Arctic at Ny-Alesund, Svalbard (79 degrees N, 12 degrees E). Both groups of cellular membrane lipids have been used as biomarkers for determining major microbial groups and biogeochemical processes in natural environments. Little is known about their distribution and usefulness as environmental markers in the Arctic. In this study, we show that both membrane lipid groups are variably distributed in the drainage area of the Broggerbreen Glacier, with highest abundance and diversity in the organic mat overlying the mineral soils, as well as in mossy surface soil. The BHP and IPL composition and abundance both indicate a larger community of phototrophic bacteria in the organic mats and fluvial sediments. The greater diversity and abundance of BHPs relative to IPLs in sub-soils, including probable markers for cyanobacteria, suggest a greater resistance to degradation. In contrast, IPL concentration decreased strongly with soil depth, pointing to their rapid degradation. Bacterial IPLs are thus thought to reflect more reliably the biomass of viable phototrophic bacteria. The high concentrations of proposed soil marker BHPs, adenosylhopane and related structures vs. published results and their relative increase with soil depth suggest better preservation and more effective accumulation of the compounds at low temperature. (C) 2010 Elsevier Ltd. All rights reserved.
format Article in Journal/Newspaper
author Rethemeyer, Janet
Schubotz, Florence
Talbot, Helen M.
Cooke, Martin P.
Hinrichs, Kai-Uwe
Mollenhauer, Gesine
author_facet Rethemeyer, Janet
Schubotz, Florence
Talbot, Helen M.
Cooke, Martin P.
Hinrichs, Kai-Uwe
Mollenhauer, Gesine
author_sort Rethemeyer, Janet
title Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
title_short Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
title_full Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
title_fullStr Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
title_full_unstemmed Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment
title_sort distribution of polar membrane lipids in permafrost soils and sediments of a small high arctic catchment
publisher PERGAMON-ELSEVIER SCIENCE LTD
publishDate 2010
url https://kups.ub.uni-koeln.de/49612/
geographic Arctic
Svalbard
geographic_facet Arctic
Svalbard
genre Arctic
Arctic
glacier
permafrost
Svalbard
genre_facet Arctic
Arctic
glacier
permafrost
Svalbard
op_relation Rethemeyer, Janet orcid:0000-0001-6698-4186 , Schubotz, Florence, Talbot, Helen M., Cooke, Martin P., Hinrichs, Kai-Uwe orcid:0000-0002-0739-9291 and Mollenhauer, Gesine orcid:0000-0001-5138-564X (2010). Distribution of polar membrane lipids in permafrost soils and sediments of a small high Arctic catchment. Org. Geochem., 41 (10). S. 1130 - 1146. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0146-6380
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