The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment
International audience Cold seeps are characterized by high biomass, which is supported by the microbial oxidation of the available methane by capable microorganisms. The carbon is subsequently transferred to higher trophic levels. South of Svalbard, five geological mounds shaped by the formation of...
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ftunivnantes:oai:HAL:hal-03333753v1 2023-05-15T15:09:47+02:00 The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment Carrier, Vincent Svenning, Mette, Gründger, Friederike Niemann, Helge Dessandier, Pierre-Antoine Panieri, Giuliana Kalenitchenko, Dimitri The Arctic University of Norway Tromsø, Norway (UiT) 2020-09-24 https://hal.science/hal-03333753 https://hal.science/hal-03333753/document https://hal.science/hal-03333753/file/fmicb-11-01932.pdf https://doi.org/10.3389/fmicb.2020.01932 en eng HAL CCSD Frontiers Media info:eu-repo/semantics/altIdentifier/doi/10.3389/fmicb.2020.01932 hal-03333753 https://hal.science/hal-03333753 https://hal.science/hal-03333753/document https://hal.science/hal-03333753/file/fmicb-11-01932.pdf doi:10.3389/fmicb.2020.01932 info:eu-repo/semantics/OpenAccess ISSN: 1664-302X EISSN: 1664-302X Frontiers in Microbiology https://hal.science/hal-03333753 Frontiers in Microbiology, 2020, 11, ⟨10.3389/fmicb.2020.01932⟩ methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria eukaryotes foraminifera [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.3389/fmicb.2020.01932 2023-01-18T00:25:06Z International audience Cold seeps are characterized by high biomass, which is supported by the microbial oxidation of the available methane by capable microorganisms. The carbon is subsequently transferred to higher trophic levels. South of Svalbard, five geological mounds shaped by the formation of methane gas hydrates, have been recently located. Methane gas seeping activity has been observed on four of them, and flares were primarily concentrated at their summits. At three of these mounds, and along a distance gradient from their summit to their outskirt, we investigated the eukaryotic and prokaryotic biodiversity linked to 16S and 18S rDNA. Here we show that local methane seepage and other environmental conditions did affect the microbial community structure and composition. We could not demonstrate a community gradient from the summit to the edge of the mounds. Instead, a similar community structure in any methane-rich sediments could be retrieved at any location on these mounds. The oxidation of methane was largely driven by anaerobic methanotrophic Archaea-1 (ANME-1) and the communities also hosted high relative abundances of sulfate reducing bacterial groups although none demonstrated a clear co-occurrence with the predominance of ANME-1. Additional common taxa were observed and their abundances were likely benefiting from the end products of methane oxidation. Among these were sulfide-oxidizing Campilobacterota, organic matter degraders, such as Bathyarchaeota, Woesearchaeota, or thermoplasmatales marine benthic group D, and heterotrophic ciliates and Cercozoa. Article in Journal/Newspaper Arctic Foraminifera* Svalbard Université de Nantes: HAL-UNIV-NANTES Arctic Svalbard Frontiers in Microbiology 11 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria eukaryotes foraminifera [SDE]Environmental Sciences |
spellingShingle |
methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria eukaryotes foraminifera [SDE]Environmental Sciences Carrier, Vincent Svenning, Mette, Gründger, Friederike Niemann, Helge Dessandier, Pierre-Antoine Panieri, Giuliana Kalenitchenko, Dimitri The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
topic_facet |
methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria eukaryotes foraminifera [SDE]Environmental Sciences |
description |
International audience Cold seeps are characterized by high biomass, which is supported by the microbial oxidation of the available methane by capable microorganisms. The carbon is subsequently transferred to higher trophic levels. South of Svalbard, five geological mounds shaped by the formation of methane gas hydrates, have been recently located. Methane gas seeping activity has been observed on four of them, and flares were primarily concentrated at their summits. At three of these mounds, and along a distance gradient from their summit to their outskirt, we investigated the eukaryotic and prokaryotic biodiversity linked to 16S and 18S rDNA. Here we show that local methane seepage and other environmental conditions did affect the microbial community structure and composition. We could not demonstrate a community gradient from the summit to the edge of the mounds. Instead, a similar community structure in any methane-rich sediments could be retrieved at any location on these mounds. The oxidation of methane was largely driven by anaerobic methanotrophic Archaea-1 (ANME-1) and the communities also hosted high relative abundances of sulfate reducing bacterial groups although none demonstrated a clear co-occurrence with the predominance of ANME-1. Additional common taxa were observed and their abundances were likely benefiting from the end products of methane oxidation. Among these were sulfide-oxidizing Campilobacterota, organic matter degraders, such as Bathyarchaeota, Woesearchaeota, or thermoplasmatales marine benthic group D, and heterotrophic ciliates and Cercozoa. |
author2 |
The Arctic University of Norway Tromsø, Norway (UiT) |
format |
Article in Journal/Newspaper |
author |
Carrier, Vincent Svenning, Mette, Gründger, Friederike Niemann, Helge Dessandier, Pierre-Antoine Panieri, Giuliana Kalenitchenko, Dimitri |
author_facet |
Carrier, Vincent Svenning, Mette, Gründger, Friederike Niemann, Helge Dessandier, Pierre-Antoine Panieri, Giuliana Kalenitchenko, Dimitri |
author_sort |
Carrier, Vincent |
title |
The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
title_short |
The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
title_full |
The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
title_fullStr |
The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
title_full_unstemmed |
The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
title_sort |
impact of methane on microbial communities at marine arctic gas hydrate bearing sediment |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03333753 https://hal.science/hal-03333753/document https://hal.science/hal-03333753/file/fmicb-11-01932.pdf https://doi.org/10.3389/fmicb.2020.01932 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Foraminifera* Svalbard |
genre_facet |
Arctic Foraminifera* Svalbard |
op_source |
ISSN: 1664-302X EISSN: 1664-302X Frontiers in Microbiology https://hal.science/hal-03333753 Frontiers in Microbiology, 2020, 11, ⟨10.3389/fmicb.2020.01932⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/fmicb.2020.01932 hal-03333753 https://hal.science/hal-03333753 https://hal.science/hal-03333753/document https://hal.science/hal-03333753/file/fmicb-11-01932.pdf doi:10.3389/fmicb.2020.01932 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3389/fmicb.2020.01932 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
_version_ |
1766340900692164608 |