Articles | Volume 19, issue 5
https://doi.org/10.5194/bg-19-1395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-1395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
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08 Mar 2022
Research article | Highlight paper |
| 08 Mar 2022
| 08 Mar 2022
Bacterial and eukaryotic intact polar lipids point to in situ production as a key source of labile organic matter in hadal surface sediment of the Atacama Trench
Edgart Flores
CORRESPONDING AUTHOR
Programa de Postgrado en Oceanografía, Departamento de
Oceanografía, Facultad de Ciencias Naturales y Oceanográficas,
Universidad de Concepción, Concepción, Chile
Departamento de Oceanografía, Universidad de Concepción,
Casilla 160-C, Concepción, Chile
Millennium Institute of Oceanography, Universidad de Concepción,
Concepción, Chile
Sebastian I. Cantarero
Department of Geological Sciences and Institute of Arctic and Alpine
Research, University of Colorado Boulder, Boulder, CO 80309, USA
Paula Ruiz-Fernández
Programa de Postgrado en Oceanografía, Departamento de
Oceanografía, Facultad de Ciencias Naturales y Oceanográficas,
Universidad de Concepción, Concepción, Chile
Departamento de Oceanografía, Universidad de Concepción,
Casilla 160-C, Concepción, Chile
Millennium Institute of Oceanography, Universidad de Concepción,
Concepción, Chile
Nadia Dildar
Department of Geological Sciences and Institute of Arctic and Alpine
Research, University of Colorado Boulder, Boulder, CO 80309, USA
Matthias Zabel
MARUM – Center for Marine Environmental Sciences and Department of
Geosciences, University of Bremen, 28334 Bremen, Germany
Osvaldo Ulloa
Departamento de Oceanografía, Universidad de Concepción,
Casilla 160-C, Concepción, Chile
Millennium Institute of Oceanography, Universidad de Concepción,
Concepción, Chile
Julio Sepúlveda
CORRESPONDING AUTHOR
Millennium Institute of Oceanography, Universidad de Concepción,
Concepción, Chile
Department of Geological Sciences and Institute of Arctic and Alpine
Research, University of Colorado Boulder, Boulder, CO 80309, USA
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Manuscript not accepted for further review
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Short summary
In this study, we investigate the chemical diversity and abundance of microbial lipids as markers of organic matter sources in the deepest points of the Atacama Trench sediments and compare them to similar lipid stocks in shallower surface sediments and in the overlying water column. We evaluate possible organic matter provenance and some potential chemical adaptations of the in situ microbial community to the extreme conditions of high hydrostatic pressure in hadal realm.
In this study, we investigate the chemical diversity and abundance of microbial lipids as...
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