The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment
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,...
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ftdoajarticles:oai:doaj.org/article:d640afad2b3f432197fd83e66b516306 2023-05-15T14:31:47+02:00 The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment Vincent Carrier Mette M. Svenning Friederike Gründger Helge Niemann Pierre-Antoine Dessandier Giuliana Panieri Dimitri Kalenitchenko 2020-09-01T00:00:00Z https://doi.org/10.3389/fmicb.2020.01932 https://doaj.org/article/d640afad2b3f432197fd83e66b516306 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmicb.2020.01932/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.01932 https://doaj.org/article/d640afad2b3f432197fd83e66b516306 Frontiers in Microbiology, Vol 11 (2020) Arctic methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria Microbiology QR1-502 article 2020 ftdoajarticles https://doi.org/10.3389/fmicb.2020.01932 2022-12-31T01:56:30Z 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 methane Arctic Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Frontiers in Microbiology 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria Microbiology QR1-502 |
spellingShingle |
Arctic methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria Microbiology QR1-502 Vincent Carrier Mette M. Svenning Friederike Gründger Helge Niemann Pierre-Antoine Dessandier Giuliana Panieri Dimitri Kalenitchenko The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment |
topic_facet |
Arctic methane seeps prokaryotes methanotrophs ANME Sulfate-reducing bacteria Microbiology QR1-502 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Vincent Carrier Mette M. Svenning Friederike Gründger Helge Niemann Pierre-Antoine Dessandier Giuliana Panieri Dimitri Kalenitchenko |
author_facet |
Vincent Carrier Mette M. Svenning Friederike Gründger Helge Niemann Pierre-Antoine Dessandier Giuliana Panieri Dimitri Kalenitchenko |
author_sort |
Vincent Carrier |
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 |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmicb.2020.01932 https://doaj.org/article/d640afad2b3f432197fd83e66b516306 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
arctic methane Arctic Svalbard |
genre_facet |
arctic methane Arctic Svalbard |
op_source |
Frontiers in Microbiology, Vol 11 (2020) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmicb.2020.01932/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2020.01932 https://doaj.org/article/d640afad2b3f432197fd83e66b516306 |
op_doi |
https://doi.org/10.3389/fmicb.2020.01932 |
container_title |
Frontiers in Microbiology |
container_volume |
11 |
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1766305316057645056 |