Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols
Bacteriohopanepolyols (BHPs) are biomarkers providing taxonomically and environmentally diagnostic information. BHPs may help to unravel the composition of bacterial communities residing in recent as well as ancient permafrost soils and sediments and also provide information on associated environmen...
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ftawi:oai:epic.awi.de:41323 2023-05-15T14:26:39+02:00 Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols Höfle, Silke T. Kusch, Stephanie Talbot, Helen M. Mollenhauer, Gesine Zubrzycki, Sebastian Burghardt, Sophia Rethemeyer, Janet 2015 https://epic.awi.de/id/eprint/41323/ https://doi.org/10.1016/j.orggeochem.2015.08.002 https://hdl.handle.net/10013/epic.48361 unknown Höfle, S. T. , Kusch, S. , Talbot, H. M. , Mollenhauer, G. orcid:0000-0001-5138-564X , Zubrzycki, S. , Burghardt, S. and Rethemeyer, J. (2015) Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols , Organic Geochemistry, 88 , pp. 1-16 . doi:10.1016/j.orggeochem.2015.08.002 <https://doi.org/10.1016/j.orggeochem.2015.08.002> , hdl:10013/epic.48361 EPIC3Organic Geochemistry, 88, pp. 1-16, ISSN: 01466380 Article isiRev 2015 ftawi https://doi.org/10.1016/j.orggeochem.2015.08.002 2021-12-24T15:41:43Z Bacteriohopanepolyols (BHPs) are biomarkers providing taxonomically and environmentally diagnostic information. BHPs may help to unravel the composition of bacterial communities residing in recent as well as ancient permafrost soils and sediments and also provide information on associated environmental conditions. However, detailed data on their distribution in the heterogeneous Arctic environment are scarce. The distribution and structural diversity of BHPs were studied in the annually thawing (active) layer of three different sites in the polygonal tundra of the Lena Delta in the Siberian Arctic. Variations between permafrost structures and soil horizons caused by differences in the physical and chemical soil propertieswere observed. C and N content is significantly correlated with the BHP composition so that the highest BHP concentrations andgreatest structuraldiversityoccur intheuppermost organic soilhorizons,whichconsistmainly of fresh or little degraded plant material. Furthermore, statistical analyses reveal that higher abundances of adenosylhopane-type soil marker BHPs are linked to higher soil pH values. Small scale environmental controls on BHP distributions are reflected by amine-functionalised BHPs from methanotrophic bacteria only occurring in the water-saturated, oxygen-depleted polygon centres and by soil marker BHPs, which are significantly more abundant in the well aerated polygon rims than in the centres. In contrast, C-2 methylated BHPs, putative indicators of plant-bacterial interactions, are present in all soil horizons and permafrost structures and their relative distribution is not systematically linked to soil properties. Overall, lipid-based results agreewith published 16S rRNA based community structure assessments highlighting the usefulness of BHPs to represent bacterial populations in recent and ancient permafrost soils. Article in Journal/Newspaper Arctic Arctic lena delta permafrost Tundra Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Organic Geochemistry 88 1 16 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Bacteriohopanepolyols (BHPs) are biomarkers providing taxonomically and environmentally diagnostic information. BHPs may help to unravel the composition of bacterial communities residing in recent as well as ancient permafrost soils and sediments and also provide information on associated environmental conditions. However, detailed data on their distribution in the heterogeneous Arctic environment are scarce. The distribution and structural diversity of BHPs were studied in the annually thawing (active) layer of three different sites in the polygonal tundra of the Lena Delta in the Siberian Arctic. Variations between permafrost structures and soil horizons caused by differences in the physical and chemical soil propertieswere observed. C and N content is significantly correlated with the BHP composition so that the highest BHP concentrations andgreatest structuraldiversityoccur intheuppermost organic soilhorizons,whichconsistmainly of fresh or little degraded plant material. Furthermore, statistical analyses reveal that higher abundances of adenosylhopane-type soil marker BHPs are linked to higher soil pH values. Small scale environmental controls on BHP distributions are reflected by amine-functionalised BHPs from methanotrophic bacteria only occurring in the water-saturated, oxygen-depleted polygon centres and by soil marker BHPs, which are significantly more abundant in the well aerated polygon rims than in the centres. In contrast, C-2 methylated BHPs, putative indicators of plant-bacterial interactions, are present in all soil horizons and permafrost structures and their relative distribution is not systematically linked to soil properties. Overall, lipid-based results agreewith published 16S rRNA based community structure assessments highlighting the usefulness of BHPs to represent bacterial populations in recent and ancient permafrost soils. |
format |
Article in Journal/Newspaper |
author |
Höfle, Silke T. Kusch, Stephanie Talbot, Helen M. Mollenhauer, Gesine Zubrzycki, Sebastian Burghardt, Sophia Rethemeyer, Janet |
spellingShingle |
Höfle, Silke T. Kusch, Stephanie Talbot, Helen M. Mollenhauer, Gesine Zubrzycki, Sebastian Burghardt, Sophia Rethemeyer, Janet Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
author_facet |
Höfle, Silke T. Kusch, Stephanie Talbot, Helen M. Mollenhauer, Gesine Zubrzycki, Sebastian Burghardt, Sophia Rethemeyer, Janet |
author_sort |
Höfle, Silke T. |
title |
Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
title_short |
Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
title_full |
Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
title_fullStr |
Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
title_full_unstemmed |
Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols |
title_sort |
characterisation of bacterial populations in arctic permafrost soils using bacteriohopanepolyols |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/41323/ https://doi.org/10.1016/j.orggeochem.2015.08.002 https://hdl.handle.net/10013/epic.48361 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic lena delta permafrost Tundra |
genre_facet |
Arctic Arctic lena delta permafrost Tundra |
op_source |
EPIC3Organic Geochemistry, 88, pp. 1-16, ISSN: 01466380 |
op_relation |
Höfle, S. T. , Kusch, S. , Talbot, H. M. , Mollenhauer, G. orcid:0000-0001-5138-564X , Zubrzycki, S. , Burghardt, S. and Rethemeyer, J. (2015) Characterisation of bacterial populations in Arctic permafrost soils using bacteriohopanepolyols , Organic Geochemistry, 88 , pp. 1-16 . doi:10.1016/j.orggeochem.2015.08.002 <https://doi.org/10.1016/j.orggeochem.2015.08.002> , hdl:10013/epic.48361 |
op_doi |
https://doi.org/10.1016/j.orggeochem.2015.08.002 |
container_title |
Organic Geochemistry |
container_volume |
88 |
container_start_page |
1 |
op_container_end_page |
16 |
_version_ |
1766299932645392384 |