Articles | Volume 19, issue 5
Biogeosciences, 19, 1395–1420, 2022
https://doi.org/10.5194/bg-19-1395-2022
Biogeosciences, 19, 1395–1420, 2022
https://doi.org/10.5194/bg-19-1395-2022

Research article 08 Mar 2022

Research article | 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 et al.

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EdgartFlores/IPLs-Atacama-Trench (v1.0.0) Edgart Flores https://doi.org/10.5281/zenodo.6325647

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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.
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