Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils
Specific soil bacterial membrane lipids, branched glycerol dialkyl glycerol tetraethers (brGDGTs), are used as an empirical proxy for past continental temperatures. Their response to temperature change is assumed to be linear, caused by physiological plasticity of their, still unknown, source organi...
Published in: | Organic Geochemistry |
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2019
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Online Access: | https://research.vu.nl/en/publications/f62b0a35-b1e2-436c-873c-387b9095d816 https://doi.org/10.1016/j.orggeochem.2019.07.006 https://hdl.handle.net/1871.1/f62b0a35-b1e2-436c-873c-387b9095d816 https://research.vu.nl/ws/files/237461480/Lipid_biomarker_temperature_proxy_responds_to_abrupt_shift_in_the_bacterial_community_composition_in_geothermally_heated_soils.pdf http://www.scopus.com/inward/record.url?scp=85072022584&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85072022584&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/f62b0a35-b1e2-436c-873c-387b9095d816 2024-09-09T19:47:19+00:00 Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils De Jonge, Cindy Radujković, Dajana Sigurdsson, Bjarni D. Weedon, James T. Janssens, Ivan Peterse, Francien 2019-11 application/pdf https://research.vu.nl/en/publications/f62b0a35-b1e2-436c-873c-387b9095d816 https://doi.org/10.1016/j.orggeochem.2019.07.006 https://hdl.handle.net/1871.1/f62b0a35-b1e2-436c-873c-387b9095d816 https://research.vu.nl/ws/files/237461480/Lipid_biomarker_temperature_proxy_responds_to_abrupt_shift_in_the_bacterial_community_composition_in_geothermally_heated_soils.pdf http://www.scopus.com/inward/record.url?scp=85072022584&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85072022584&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/f62b0a35-b1e2-436c-873c-387b9095d816 info:eu-repo/semantics/openAccess De Jonge , C , Radujković , D , Sigurdsson , B D , Weedon , J T , Janssens , I & Peterse , F 2019 , ' Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils ' , Organic Geochemistry , vol. 137 , 103897 , pp. 1-13 . https://doi.org/10.1016/j.orggeochem.2019.07.006 Bacterial community Biomarker lipid Soil brGDGTs article 2019 ftvuamstcris https://doi.org/10.1016/j.orggeochem.2019.07.006 2024-08-29T00:18:48Z Specific soil bacterial membrane lipids, branched glycerol dialkyl glycerol tetraethers (brGDGTs), are used as an empirical proxy for past continental temperatures. Their response to temperature change is assumed to be linear, caused by physiological plasticity of their, still unknown, source organisms. A well-studied set of geothermally warmed soils (Iceland) shows that the brGDGT fingerprint only changes when the soil mean annual temperature is warmer than 14 °C. This sudden change in brGDGT distribution coincides with an abrupt shift in the bacterial community composition in the same soils. Determining which bacterial OTUs are indicative for each soil cluster shows that Acidobacteria are possible brGDGT producers, together with representatives from the Actinobacteria, Chloroflexi, Gemmationadetes and Proteobacteria. Projecting the lipid fingerprint of the cold and warm bacterial communities onto the global soil calibration dataset creates two distinct soil clusters, in which brGDGTs respond differently to temperature and, especially, soil pH. We show that, on a local scale, a community effect rather than physiological plasticity can be the primary driver of the brGDGT-based paleothermometer along large temperature gradients. This threshold response needs to be taken into account when interpreting brGDGT-based paleo-records. Article in Journal/Newspaper Iceland Vrije Universiteit Amsterdam (VU): Research Portal Organic Geochemistry 137 103897 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Bacterial community Biomarker lipid Soil brGDGTs |
spellingShingle |
Bacterial community Biomarker lipid Soil brGDGTs De Jonge, Cindy Radujković, Dajana Sigurdsson, Bjarni D. Weedon, James T. Janssens, Ivan Peterse, Francien Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
topic_facet |
Bacterial community Biomarker lipid Soil brGDGTs |
description |
Specific soil bacterial membrane lipids, branched glycerol dialkyl glycerol tetraethers (brGDGTs), are used as an empirical proxy for past continental temperatures. Their response to temperature change is assumed to be linear, caused by physiological plasticity of their, still unknown, source organisms. A well-studied set of geothermally warmed soils (Iceland) shows that the brGDGT fingerprint only changes when the soil mean annual temperature is warmer than 14 °C. This sudden change in brGDGT distribution coincides with an abrupt shift in the bacterial community composition in the same soils. Determining which bacterial OTUs are indicative for each soil cluster shows that Acidobacteria are possible brGDGT producers, together with representatives from the Actinobacteria, Chloroflexi, Gemmationadetes and Proteobacteria. Projecting the lipid fingerprint of the cold and warm bacterial communities onto the global soil calibration dataset creates two distinct soil clusters, in which brGDGTs respond differently to temperature and, especially, soil pH. We show that, on a local scale, a community effect rather than physiological plasticity can be the primary driver of the brGDGT-based paleothermometer along large temperature gradients. This threshold response needs to be taken into account when interpreting brGDGT-based paleo-records. |
format |
Article in Journal/Newspaper |
author |
De Jonge, Cindy Radujković, Dajana Sigurdsson, Bjarni D. Weedon, James T. Janssens, Ivan Peterse, Francien |
author_facet |
De Jonge, Cindy Radujković, Dajana Sigurdsson, Bjarni D. Weedon, James T. Janssens, Ivan Peterse, Francien |
author_sort |
De Jonge, Cindy |
title |
Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
title_short |
Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
title_full |
Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
title_fullStr |
Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
title_full_unstemmed |
Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
title_sort |
lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils |
publishDate |
2019 |
url |
https://research.vu.nl/en/publications/f62b0a35-b1e2-436c-873c-387b9095d816 https://doi.org/10.1016/j.orggeochem.2019.07.006 https://hdl.handle.net/1871.1/f62b0a35-b1e2-436c-873c-387b9095d816 https://research.vu.nl/ws/files/237461480/Lipid_biomarker_temperature_proxy_responds_to_abrupt_shift_in_the_bacterial_community_composition_in_geothermally_heated_soils.pdf http://www.scopus.com/inward/record.url?scp=85072022584&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85072022584&partnerID=8YFLogxK |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
De Jonge , C , Radujković , D , Sigurdsson , B D , Weedon , J T , Janssens , I & Peterse , F 2019 , ' Lipid biomarker temperature proxy responds to abrupt shift in the bacterial community composition in geothermally heated soils ' , Organic Geochemistry , vol. 137 , 103897 , pp. 1-13 . https://doi.org/10.1016/j.orggeochem.2019.07.006 |
op_relation |
https://research.vu.nl/en/publications/f62b0a35-b1e2-436c-873c-387b9095d816 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.orggeochem.2019.07.006 |
container_title |
Organic Geochemistry |
container_volume |
137 |
container_start_page |
103897 |
_version_ |
1809916794228441088 |