Subsurface microbial community structure shifts along the geological features of the Central American Volcanic Arc DOI Creative Commons
Marco Basili, Timothy J. Rogers, Mayuko Nakagawa

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(11), P. e0308756 - e0308756

Published: Nov. 13, 2024

Subduction of the Cocos and Nazca oceanic plates beneath Caribbean plate drives upward movement deep fluids enriched in carbon, nitrogen, sulfur, iron along Central American Volcanic Arc (CAVA). These compounds fuel diverse subsurface microbial communities that turn alter distribution, redox state, isotopic composition these compounds. Microbial community structure functions vary according to fluid delivery across arc, but less is known about how differ axis a convergent margin as geological features ( e . g ., extent volcanism subduction geometry) shift. Here, we investigate changes bacterial 16S rRNA gene amplicons geochemical analysis deeply-sourced seeps southern CAVA, where Ridge alters setting. We find shifts margin, with similar settings clustering together independently proximity sample sites. correlates variables such host rock type, maturity hydrothermal slab depth different segments CAVA. This reveals tight coupling between Earth processes activity, controlling margin.

Language: Английский

Standard operating procedure for the analysis of major ions in hydrothermal fluids by ion chromatography DOI Creative Commons
Monica Correggia,

Luciano Di Iorio,

Alessia Bastianoni

et al.

Open Research Europe, Journal Year: 2024, Volume and Issue: 3, P. 94 - 94

Published: May 28, 2024

This standard operating procedure (SOP) describes an ion chromatography (IC) for the major cations and anions in hydrothermal fluids. Hydrothermal fluids are aqueous solutions with a wide range of temperature, salinity, pH species that can be used by microbial metabolism as electron donors acceptors. Due to high variability environmental physical-chemical parameters these samples, we have developed this protocol taking into account special features matrices analyzed. An Eco IC Metrohm system equipped conductivity detector was used. Calibration curves linear 0.1 10 mg/L concentration Ca

Language: Английский

Citations

1
Chemolithoautotrophic diazotrophs dominate dark nitrogen fixation in mangrove sediments DOI Creative Commons
Shasha Wang, Lijing Jiang,

Zhuoming Zhao

et al.

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Diazotrophic microorganisms regulate marine productivity by alleviating nitrogen limitation. So far chemolithoautotrophic bacteria are widely recognized as the principal diazotrophs in oligotrophic and terrestrial ecosystems. However, contribution of chemolithoautotrophs to fixation organic-rich habitats remains unclear. Here, we utilized metagenomic metatranscriptomic approaches integrated with cultivation assays investigate diversity, distribution, activity residing Zhangzhou mangrove sediments. Physicochemical show that studied sediments typical carbon-rich, sulfur-rich, nitrogen-limited, low-redox These host a wide phylogenetic variety nitrogenase genes, including groups I-III VII-VIII. Unexpectedly diverse taxa Campylobacteria, Gammaproteobacteria, Zetaproteobacteria, Thermodesulfovibrionia predominant active fixers 0-18 cm sediment layer. In contrast, 18-20 layer is dominated from Desulfobacterota Halobacteriota. Further analysis MAGs shows main can fix coupling oxidation hydrogen, reduced sulfur, iron, reduction oxygen, nitrate, sulfur. Culture experiments further demonstrate members Campylobacteria have nitrogen-fixing capacity driven hydrogen sulfur oxidation. Activity measurements confirm inhabiting preferentially drain energy inorganic compounds other than organics. Overall, our results suggest rather heterotrophs dominant This study underscores significance carbon-dominant

Language: Английский

Citations

1
Standard Operating Procedure for the determination of trace elements in hydrothermal fluids by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) DOI Creative Commons
Monica Correggia,

Luciano Di Iorio,

Alessia Bastianoni

et al.

Open Research Europe, Journal Year: 2024, Volume and Issue: 3, P. 90 - 90

Published: July 24, 2024

This standard operating procedure (SOP) validates an inductively coupled plasma mass spectrometry (ICP-MS) for the determination of trace elements in hydrothermal fluids. Hydrothermal fluids are aqueous solutions with a wide range temperature, salinity, pH and that can be used by set microbial proteins containing redox-sensitive transition metals as their catalytic core. Due to high variability these samples, we have developed this protocol taking into account special features matrices analyzed. An ICP-MS 7900 Agilent system was used. Calibration curves linear 0.01 100 μg/L concentration range.

Language: Английский

Citations

1
Cold-subduction biogeodynamics boost deep energy delivery to the forearc DOI Creative Commons
Veronica Peverelli, Orlando Sébastien Olivieri, Tatsuki Tsujimori

et al.

Geochimica et Cosmochimica Acta, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

1
Subsurface microbial community structure shifts along the geological features of the Central American Volcanic Arc DOI Creative Commons
Marco Basili, Timothy J. Rogers, Mayuko Nakagawa

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(11), P. e0308756 - e0308756

Published: Nov. 13, 2024

Subduction of the Cocos and Nazca oceanic plates beneath Caribbean plate drives upward movement deep fluids enriched in carbon, nitrogen, sulfur, iron along Central American Volcanic Arc (CAVA). These compounds fuel diverse subsurface microbial communities that turn alter distribution, redox state, isotopic composition these compounds. Microbial community structure functions vary according to fluid delivery across arc, but less is known about how differ axis a convergent margin as geological features ( e . g ., extent volcanism subduction geometry) shift. Here, we investigate changes bacterial 16S rRNA gene amplicons geochemical analysis deeply-sourced seeps southern CAVA, where Ridge alters setting. We find shifts margin, with similar settings clustering together independently proximity sample sites. correlates variables such host rock type, maturity hydrothermal slab depth different segments CAVA. This reveals tight coupling between Earth processes activity, controlling margin.

Language: Английский

Citations

1