Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge
Methods developed in geochemical modelling combined with recent advances in molecular microbial ecology provide new opportunities to explore how microbial communities are shaped by their chemical surroundings. Here, we present a framework for analyses of how chemical energy availability shape chemot...
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ftunivbergen:oai:bora.uib.no:1956/10968 2023-05-15T14:54:21+02:00 Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge Dahle, Håkon Økland, Ingeborg Elisabet Thorseth, Ingunn Hindenes Pedersen, Rolf B. Steen, Ida Helene 2015-12-30T16:57:53Z application/pdf https://hdl.handle.net/1956/10968 https://doi.org/10.1038/ismej.2014.247 eng eng Nature Publishing Group (NPG) Norges forskningsråd: 179560 urn:issn:1751-7370 https://hdl.handle.net/1956/10968 https://doi.org/10.1038/ismej.2014.247 cristin:1194696 Attribution CC BY-NC-ND 3.0 http://creativecommons.org/licenses/by-nc-nd/3.0 Copyright 2015, Rights Managed by Nature Publishing Group Arctic mid-ocean ridge hydrothermal systems VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400 Peer reviewed Journal article 2015 ftunivbergen https://doi.org/10.1038/ismej.2014.247 2023-03-14T17:44:25Z Methods developed in geochemical modelling combined with recent advances in molecular microbial ecology provide new opportunities to explore how microbial communities are shaped by their chemical surroundings. Here, we present a framework for analyses of how chemical energy availability shape chemotrophic microbial communities in hydrothermal systems through an investigation of two geochemically different basalt-hosted hydrothermal systems on the Arctic Mid-Ocean Ridge: the Soria Moria Vent field (SMVF) and the Loki’s Castle Vent Field (LCVF). Chemical energy landscapes were evaluated through modelling of the Gibbs energy from selected redox reactions under different mixing ratios between seawater and hydrothermal fluids. Our models indicate that the sediment-influenced LCVF has a much higher potential for both anaerobic and aerobic methane oxidation, as well as aerobic ammonium and hydrogen oxidation, than the SMVF. The modelled energy landscapes were used to develop microbial community composition models, which were compared with community compositions in environmental samples inside or on the exterior of hydrothermal chimneys, as assessed by pyrosequencing of partial 16S rRNA genes. We show that modelled microbial communities based solely on thermodynamic considerations can have a high predictive power and provide a framework for analyses of the link between energy availability and microbial community composition. publishedVersion Article in Journal/Newspaper Arctic University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic The ISME Journal 9 7 1593 1606 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Arctic mid-ocean ridge hydrothermal systems VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
Arctic mid-ocean ridge hydrothermal systems VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400 Dahle, Håkon Økland, Ingeborg Elisabet Thorseth, Ingunn Hindenes Pedersen, Rolf B. Steen, Ida Helene Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
topic_facet |
Arctic mid-ocean ridge hydrothermal systems VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400 |
description |
Methods developed in geochemical modelling combined with recent advances in molecular microbial ecology provide new opportunities to explore how microbial communities are shaped by their chemical surroundings. Here, we present a framework for analyses of how chemical energy availability shape chemotrophic microbial communities in hydrothermal systems through an investigation of two geochemically different basalt-hosted hydrothermal systems on the Arctic Mid-Ocean Ridge: the Soria Moria Vent field (SMVF) and the Loki’s Castle Vent Field (LCVF). Chemical energy landscapes were evaluated through modelling of the Gibbs energy from selected redox reactions under different mixing ratios between seawater and hydrothermal fluids. Our models indicate that the sediment-influenced LCVF has a much higher potential for both anaerobic and aerobic methane oxidation, as well as aerobic ammonium and hydrogen oxidation, than the SMVF. The modelled energy landscapes were used to develop microbial community composition models, which were compared with community compositions in environmental samples inside or on the exterior of hydrothermal chimneys, as assessed by pyrosequencing of partial 16S rRNA genes. We show that modelled microbial communities based solely on thermodynamic considerations can have a high predictive power and provide a framework for analyses of the link between energy availability and microbial community composition. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Dahle, Håkon Økland, Ingeborg Elisabet Thorseth, Ingunn Hindenes Pedersen, Rolf B. Steen, Ida Helene |
author_facet |
Dahle, Håkon Økland, Ingeborg Elisabet Thorseth, Ingunn Hindenes Pedersen, Rolf B. Steen, Ida Helene |
author_sort |
Dahle, Håkon |
title |
Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
title_short |
Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
title_full |
Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
title_fullStr |
Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
title_full_unstemmed |
Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge |
title_sort |
energy landscapes shape microbial communities in hydrothermal systems on the arctic mid-ocean ridge |
publisher |
Nature Publishing Group (NPG) |
publishDate |
2015 |
url |
https://hdl.handle.net/1956/10968 https://doi.org/10.1038/ismej.2014.247 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Norges forskningsråd: 179560 urn:issn:1751-7370 https://hdl.handle.net/1956/10968 https://doi.org/10.1038/ismej.2014.247 cristin:1194696 |
op_rights |
Attribution CC BY-NC-ND 3.0 http://creativecommons.org/licenses/by-nc-nd/3.0 Copyright 2015, Rights Managed by Nature Publishing Group |
op_doi |
https://doi.org/10.1038/ismej.2014.247 |
container_title |
The ISME Journal |
container_volume |
9 |
container_issue |
7 |
container_start_page |
1593 |
op_container_end_page |
1606 |
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1766326065772363776 |