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.
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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Cited
12 citations as recorded by crossref.
- Uniform selective pressures within redox zones drive gradual changes in microbial community composition in hadal sediments C. Schauberger et al. https://doi.org/10.1111/1462-2920.16377
- Particulate Organic Matter in the Atacama Trench: Tracing Sources and Possible Transport Mechanisms to the Hadal Seafloor E. Flores et al. https://doi.org/10.1029/2023JG007401
- Dynamic organic matter sources drive intact polar lipids recently deposited in surface sediments from the Yangtze River Estuary and adjacent sea D. Duan et al. https://doi.org/10.1016/j.marchem.2025.104574
- A focus on different types of organic matter particles and their significance in the open ocean carbon cycle C. Baumas & M. Bizic https://doi.org/10.1016/j.pocean.2024.103233
- Vertical zonation and environmental drivers of North-West Pacific abyssal and hadal mobile faunal communities D. Swanborn et al. https://doi.org/10.1016/j.dsr.2024.104418
- High variability in organic carbon sources and microbial activities in the hadopelagic waters X. Li et al. https://doi.org/10.1002/lno.12379
- Cosmopolitan marine bacteria facilitate a vast phytoplankton-derived sulfonate-based carbon flow through sulfoquinovosidases X. Ma et al. https://doi.org/10.1038/s41467-025-66898-z
- Nitrogen and sulfur for phosphorus: Lipidome adaptation of anaerobic sulfate-reducing bacteria in phosphorus-deprived conditions S. Ding et al. https://doi.org/10.1073/pnas.2400711121
- Unveiling the nutritional treasure trove: A comparative analysis of two Azolla species for potential food applications K. Anokhi Chandrababu et al. https://doi.org/10.1016/j.foohum.2024.100444
- Carbon capture by stipitate kelp forests in Peru: insights from population assessment of Lessonia trabeculata at 15°S B. Cevallos et al. https://doi.org/10.1007/s10811-024-03269-z
- Lipid remodeling in phytoplankton exposed to multi-environmental drivers in a mesocosm experiment S. Cantarero et al. https://doi.org/10.5194/bg-21-3927-2024
- Substantial contribution of in situ produced bacterial lipids to the sedimentary lipidome S. Ding et al. https://doi.org/10.1093/ismeco/ycaf191
12 citations as recorded by crossref.
- Uniform selective pressures within redox zones drive gradual changes in microbial community composition in hadal sediments C. Schauberger et al. https://doi.org/10.1111/1462-2920.16377
- Particulate Organic Matter in the Atacama Trench: Tracing Sources and Possible Transport Mechanisms to the Hadal Seafloor E. Flores et al. https://doi.org/10.1029/2023JG007401
- Dynamic organic matter sources drive intact polar lipids recently deposited in surface sediments from the Yangtze River Estuary and adjacent sea D. Duan et al. https://doi.org/10.1016/j.marchem.2025.104574
- A focus on different types of organic matter particles and their significance in the open ocean carbon cycle C. Baumas & M. Bizic https://doi.org/10.1016/j.pocean.2024.103233
- Vertical zonation and environmental drivers of North-West Pacific abyssal and hadal mobile faunal communities D. Swanborn et al. https://doi.org/10.1016/j.dsr.2024.104418
- High variability in organic carbon sources and microbial activities in the hadopelagic waters X. Li et al. https://doi.org/10.1002/lno.12379
- Cosmopolitan marine bacteria facilitate a vast phytoplankton-derived sulfonate-based carbon flow through sulfoquinovosidases X. Ma et al. https://doi.org/10.1038/s41467-025-66898-z
- Nitrogen and sulfur for phosphorus: Lipidome adaptation of anaerobic sulfate-reducing bacteria in phosphorus-deprived conditions S. Ding et al. https://doi.org/10.1073/pnas.2400711121
- Unveiling the nutritional treasure trove: A comparative analysis of two Azolla species for potential food applications K. Anokhi Chandrababu et al. https://doi.org/10.1016/j.foohum.2024.100444
- Carbon capture by stipitate kelp forests in Peru: insights from population assessment of Lessonia trabeculata at 15°S B. Cevallos et al. https://doi.org/10.1007/s10811-024-03269-z
- Lipid remodeling in phytoplankton exposed to multi-environmental drivers in a mesocosm experiment S. Cantarero et al. https://doi.org/10.5194/bg-21-3927-2024
- Substantial contribution of in situ produced bacterial lipids to the sedimentary lipidome S. Ding et al. https://doi.org/10.1093/ismeco/ycaf191
Saved (final revised paper)
Latest update: 15 Jun 2026
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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