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Salinity causes differences in stratigraphic methane sources and sinks
Methane metabolism, driven by methanogenic and methanotrophic microorganisms, plays a pivotal role in the carbon cycle. As seawater intrusion and soil salinization rise due to global environmental shifts, understanding how salinity affects methane emissions, especially in deep strata, becomes impera...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10692758/ https://www.ncbi.nlm.nih.gov/pubmed/38046178 http://dx.doi.org/10.1016/j.ese.2023.100334 |
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author | Qu, Ying Zhao, Yuxiang Yao, Xiangwu Wang, Jiaqi Liu, Zishu Hong, Yi Zheng, Ping Wang, Lizhong Hu, Baolan |
author_facet | Qu, Ying Zhao, Yuxiang Yao, Xiangwu Wang, Jiaqi Liu, Zishu Hong, Yi Zheng, Ping Wang, Lizhong Hu, Baolan |
author_sort | Qu, Ying |
collection | PubMed |
description | Methane metabolism, driven by methanogenic and methanotrophic microorganisms, plays a pivotal role in the carbon cycle. As seawater intrusion and soil salinization rise due to global environmental shifts, understanding how salinity affects methane emissions, especially in deep strata, becomes imperative. Yet, insights into stratigraphic methane release under varying salinity conditions remain sparse. Here we investigate the effects of salinity on methane metabolism across terrestrial and coastal strata (15–40 m depth) through in situ and microcosm simulation studies. Coastal strata, exhibiting a salinity level five times greater than terrestrial strata, manifested a 12.05% decrease in total methane production, but a staggering 687.34% surge in methane oxidation, culminating in 146.31% diminished methane emissions. Salinity emerged as a significant factor shaping the methane-metabolizing microbial community's dynamics, impacting the methanogenic archaeal, methanotrophic archaeal, and methanotrophic bacterial communities by 16.53%, 27.25%, and 22.94%, respectively. Furthermore, microbial interactions influenced strata system methane metabolism. Metabolic pathway analyses suggested Atribacteria JS1's potential role in organic matter decomposition, facilitating methane production via Methanofastidiosales. This study thus offers a comprehensive lens to comprehend stratigraphic methane emission dynamics and the overarching factors modulating them. |
format | Online Article Text |
id | pubmed-10692758 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-106927582023-12-03 Salinity causes differences in stratigraphic methane sources and sinks Qu, Ying Zhao, Yuxiang Yao, Xiangwu Wang, Jiaqi Liu, Zishu Hong, Yi Zheng, Ping Wang, Lizhong Hu, Baolan Environ Sci Ecotechnol Original Research Methane metabolism, driven by methanogenic and methanotrophic microorganisms, plays a pivotal role in the carbon cycle. As seawater intrusion and soil salinization rise due to global environmental shifts, understanding how salinity affects methane emissions, especially in deep strata, becomes imperative. Yet, insights into stratigraphic methane release under varying salinity conditions remain sparse. Here we investigate the effects of salinity on methane metabolism across terrestrial and coastal strata (15–40 m depth) through in situ and microcosm simulation studies. Coastal strata, exhibiting a salinity level five times greater than terrestrial strata, manifested a 12.05% decrease in total methane production, but a staggering 687.34% surge in methane oxidation, culminating in 146.31% diminished methane emissions. Salinity emerged as a significant factor shaping the methane-metabolizing microbial community's dynamics, impacting the methanogenic archaeal, methanotrophic archaeal, and methanotrophic bacterial communities by 16.53%, 27.25%, and 22.94%, respectively. Furthermore, microbial interactions influenced strata system methane metabolism. Metabolic pathway analyses suggested Atribacteria JS1's potential role in organic matter decomposition, facilitating methane production via Methanofastidiosales. This study thus offers a comprehensive lens to comprehend stratigraphic methane emission dynamics and the overarching factors modulating them. Elsevier 2023-10-19 /pmc/articles/PMC10692758/ /pubmed/38046178 http://dx.doi.org/10.1016/j.ese.2023.100334 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Research Qu, Ying Zhao, Yuxiang Yao, Xiangwu Wang, Jiaqi Liu, Zishu Hong, Yi Zheng, Ping Wang, Lizhong Hu, Baolan Salinity causes differences in stratigraphic methane sources and sinks |
title | Salinity causes differences in stratigraphic methane sources and sinks |
title_full | Salinity causes differences in stratigraphic methane sources and sinks |
title_fullStr | Salinity causes differences in stratigraphic methane sources and sinks |
title_full_unstemmed | Salinity causes differences in stratigraphic methane sources and sinks |
title_short | Salinity causes differences in stratigraphic methane sources and sinks |
title_sort | salinity causes differences in stratigraphic methane sources and sinks |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10692758/ https://www.ncbi.nlm.nih.gov/pubmed/38046178 http://dx.doi.org/10.1016/j.ese.2023.100334 |
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