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Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)

Anthropogenic activities are modifying the oceanic environment rapidly and are causing ocean warming and deoxygenation, affecting biodiversity, productivity, and biogeochemical cycling. In coastal sediments, anaerobic organic matter degradation essentially fuels the production of hydrogen sulfide an...

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Autores principales: Perner, Mirjam, Wallmann, Klaus, Adam-Beyer, Nicole, Hepach, Helmke, Laufer-Meiser, Katja, Böhnke, Stefanie, Diercks, Isabel, Bange, Hermann W., Indenbirken, Daniela, Nikeleit, Verena, Bryce, Casey, Kappler, Andreas, Engel, Anja, Scholz, Florian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9822571/
https://www.ncbi.nlm.nih.gov/pubmed/36620042
http://dx.doi.org/10.3389/fmicb.2022.1096062
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author Perner, Mirjam
Wallmann, Klaus
Adam-Beyer, Nicole
Hepach, Helmke
Laufer-Meiser, Katja
Böhnke, Stefanie
Diercks, Isabel
Bange, Hermann W.
Indenbirken, Daniela
Nikeleit, Verena
Bryce, Casey
Kappler, Andreas
Engel, Anja
Scholz, Florian
author_facet Perner, Mirjam
Wallmann, Klaus
Adam-Beyer, Nicole
Hepach, Helmke
Laufer-Meiser, Katja
Böhnke, Stefanie
Diercks, Isabel
Bange, Hermann W.
Indenbirken, Daniela
Nikeleit, Verena
Bryce, Casey
Kappler, Andreas
Engel, Anja
Scholz, Florian
author_sort Perner, Mirjam
collection PubMed
description Anthropogenic activities are modifying the oceanic environment rapidly and are causing ocean warming and deoxygenation, affecting biodiversity, productivity, and biogeochemical cycling. In coastal sediments, anaerobic organic matter degradation essentially fuels the production of hydrogen sulfide and methane. The release of these compounds from sediments is detrimental for the (local) environment and entails socio-economic consequences. Therefore, it is vital to understand which microbes catalyze the re-oxidation of these compounds under environmental dynamics, thereby mitigating their release to the water column. Here we use the seasonally dynamic Boknis Eck study site (SW Baltic Sea), where bottom waters annually fall hypoxic or anoxic after the summer months, to extrapolate how the microbial community and its activity reflects rising temperatures and deoxygenation. During October 2018, hallmarked by warmer bottom water and following a hypoxic event, modeled sulfide and methane production and consumption rates are higher than in March at lower temperatures and under fully oxic bottom water conditions. The microbial populations catalyzing sulfide and methane metabolisms are found in shallower sediment zones in October 2018 than in March 2019. DNA-and RNA profiling of sediments indicate a shift from primarily organotrophic to (autotrophic) sulfide oxidizing Bacteria, respectively. Previous studies using data collected over decades demonstrate rising temperatures, decreasing eutrophication, lower primary production and thus less fresh organic matter transported to the Boknis Eck sediments. Elevated temperatures are known to stimulate methanogenesis, anaerobic oxidation of methane, sulfate reduction and essentially microbial sulfide consumption, likely explaining the shift to a phylogenetically more diverse sulfide oxidizing community based on RNA.
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spelling pubmed-98225712023-01-07 Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea) Perner, Mirjam Wallmann, Klaus Adam-Beyer, Nicole Hepach, Helmke Laufer-Meiser, Katja Böhnke, Stefanie Diercks, Isabel Bange, Hermann W. Indenbirken, Daniela Nikeleit, Verena Bryce, Casey Kappler, Andreas Engel, Anja Scholz, Florian Front Microbiol Microbiology Anthropogenic activities are modifying the oceanic environment rapidly and are causing ocean warming and deoxygenation, affecting biodiversity, productivity, and biogeochemical cycling. In coastal sediments, anaerobic organic matter degradation essentially fuels the production of hydrogen sulfide and methane. The release of these compounds from sediments is detrimental for the (local) environment and entails socio-economic consequences. Therefore, it is vital to understand which microbes catalyze the re-oxidation of these compounds under environmental dynamics, thereby mitigating their release to the water column. Here we use the seasonally dynamic Boknis Eck study site (SW Baltic Sea), where bottom waters annually fall hypoxic or anoxic after the summer months, to extrapolate how the microbial community and its activity reflects rising temperatures and deoxygenation. During October 2018, hallmarked by warmer bottom water and following a hypoxic event, modeled sulfide and methane production and consumption rates are higher than in March at lower temperatures and under fully oxic bottom water conditions. The microbial populations catalyzing sulfide and methane metabolisms are found in shallower sediment zones in October 2018 than in March 2019. DNA-and RNA profiling of sediments indicate a shift from primarily organotrophic to (autotrophic) sulfide oxidizing Bacteria, respectively. Previous studies using data collected over decades demonstrate rising temperatures, decreasing eutrophication, lower primary production and thus less fresh organic matter transported to the Boknis Eck sediments. Elevated temperatures are known to stimulate methanogenesis, anaerobic oxidation of methane, sulfate reduction and essentially microbial sulfide consumption, likely explaining the shift to a phylogenetically more diverse sulfide oxidizing community based on RNA. Frontiers Media S.A. 2022-12-21 /pmc/articles/PMC9822571/ /pubmed/36620042 http://dx.doi.org/10.3389/fmicb.2022.1096062 Text en Copyright © 2022 Perner, Wallmann, Adam-Beyer, Hepach, Laufer-Meiser, Böhnke, Diercks, Bange, Indenbirken, Nikeleit, Bryce, Kappler, Engel and Scholz. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Perner, Mirjam
Wallmann, Klaus
Adam-Beyer, Nicole
Hepach, Helmke
Laufer-Meiser, Katja
Böhnke, Stefanie
Diercks, Isabel
Bange, Hermann W.
Indenbirken, Daniela
Nikeleit, Verena
Bryce, Casey
Kappler, Andreas
Engel, Anja
Scholz, Florian
Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title_full Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title_fullStr Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title_full_unstemmed Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title_short Environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at Boknis Eck (SW Baltic Sea)
title_sort environmental changes affect the microbial release of hydrogen sulfide and methane from sediments at boknis eck (sw baltic sea)
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9822571/
https://www.ncbi.nlm.nih.gov/pubmed/36620042
http://dx.doi.org/10.3389/fmicb.2022.1096062
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