Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration
The pool of dissolved organic matter (DOM) in the deep ocean represents one of the largest carbon sinks on the planet. In recent years, studies have shown that most of this pool is recalcitrant, because individual compounds are present at low concentrations and because certain compounds seem resista...
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Nature Research
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Online Access: | https://epic.awi.de/id/eprint/52838/ https://epic.awi.de/id/eprint/52838/1/Hach_et_al_2020.pdf https://hdl.handle.net/10013/epic.24929bd1-5b38-4b02-89c5-d6e8072915c4 |
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ftawi:oai:epic.awi.de:52838 2024-09-15T18:23:27+00:00 Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration Hach, Philipp F. Marchant, Hannah K. Krupke, Andreas Riedel, Thomas Meier, Dimitri V. Lavik, Gaute Holtappels, Moritz Dittmar, Thorsten Kuypers, Marcel M. M. 2020-08-03 application/pdf https://epic.awi.de/id/eprint/52838/ https://epic.awi.de/id/eprint/52838/1/Hach_et_al_2020.pdf https://hdl.handle.net/10013/epic.24929bd1-5b38-4b02-89c5-d6e8072915c4 unknown Nature Research https://epic.awi.de/id/eprint/52838/1/Hach_et_al_2020.pdf Hach, P. F. , Marchant, H. K. , Krupke, A. , Riedel, T. , Meier, D. V. , Lavik, G. , Holtappels, M. orcid:0000-0003-3682-1903 , Dittmar, T. and Kuypers, M. M. M. (2020) Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration , Scientific Reports, 10 (13025) . doi:10.1038/s41598-020-69930-y <https://doi.org/10.1038/s41598-020-69930-y> , hdl:10013/epic.24929bd1-5b38-4b02-89c5-d6e8072915c4 EPIC3Scientific Reports, Nature Research, 10(13025), ISSN: 2045-2322 Article isiRev 2020 ftawi https://doi.org/10.1038/s41598-020-69930-y 2024-06-24T04:24:41Z The pool of dissolved organic matter (DOM) in the deep ocean represents one of the largest carbon sinks on the planet. In recent years, studies have shown that most of this pool is recalcitrant, because individual compounds are present at low concentrations and because certain compounds seem resistant to microbial degradation. The formation of the diverse and recalcitrant deep ocean DOM pool has been attributed to repeated and successive processing of DOM by microorganisms over time scales of weeks to years. Little is known however, about the transformation and cycling that labile DOM undergoes in the first hours upon its release from phytoplankton. Here we provide direct experimental evidence showing that within hours of labile DOM release, its breakdown and recombination with ambient DOM leads to the formation of a diverse array of new molecules in oligotrophic North Atlantic surface waters. Furthermore, our results reveal a preferential breakdown of N and P containing molecules versus those containing only carbon. Hence, we show the preferential breakdown and molecular diversification are the crucial first steps in the eventual formation of carbon rich DOM that is resistant to microbial remineralization. Article in Journal/Newspaper North Atlantic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Scientific Reports 10 1 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
The pool of dissolved organic matter (DOM) in the deep ocean represents one of the largest carbon sinks on the planet. In recent years, studies have shown that most of this pool is recalcitrant, because individual compounds are present at low concentrations and because certain compounds seem resistant to microbial degradation. The formation of the diverse and recalcitrant deep ocean DOM pool has been attributed to repeated and successive processing of DOM by microorganisms over time scales of weeks to years. Little is known however, about the transformation and cycling that labile DOM undergoes in the first hours upon its release from phytoplankton. Here we provide direct experimental evidence showing that within hours of labile DOM release, its breakdown and recombination with ambient DOM leads to the formation of a diverse array of new molecules in oligotrophic North Atlantic surface waters. Furthermore, our results reveal a preferential breakdown of N and P containing molecules versus those containing only carbon. Hence, we show the preferential breakdown and molecular diversification are the crucial first steps in the eventual formation of carbon rich DOM that is resistant to microbial remineralization. |
format |
Article in Journal/Newspaper |
author |
Hach, Philipp F. Marchant, Hannah K. Krupke, Andreas Riedel, Thomas Meier, Dimitri V. Lavik, Gaute Holtappels, Moritz Dittmar, Thorsten Kuypers, Marcel M. M. |
spellingShingle |
Hach, Philipp F. Marchant, Hannah K. Krupke, Andreas Riedel, Thomas Meier, Dimitri V. Lavik, Gaute Holtappels, Moritz Dittmar, Thorsten Kuypers, Marcel M. M. Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
author_facet |
Hach, Philipp F. Marchant, Hannah K. Krupke, Andreas Riedel, Thomas Meier, Dimitri V. Lavik, Gaute Holtappels, Moritz Dittmar, Thorsten Kuypers, Marcel M. M. |
author_sort |
Hach, Philipp F. |
title |
Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
title_short |
Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
title_full |
Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
title_fullStr |
Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
title_full_unstemmed |
Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
title_sort |
rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration |
publisher |
Nature Research |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/52838/ https://epic.awi.de/id/eprint/52838/1/Hach_et_al_2020.pdf https://hdl.handle.net/10013/epic.24929bd1-5b38-4b02-89c5-d6e8072915c4 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
EPIC3Scientific Reports, Nature Research, 10(13025), ISSN: 2045-2322 |
op_relation |
https://epic.awi.de/id/eprint/52838/1/Hach_et_al_2020.pdf Hach, P. F. , Marchant, H. K. , Krupke, A. , Riedel, T. , Meier, D. V. , Lavik, G. , Holtappels, M. orcid:0000-0003-3682-1903 , Dittmar, T. and Kuypers, M. M. M. (2020) Rapid microbial diversification of dissolved organic matter in oceanic surface waters leads to carbon sequestration , Scientific Reports, 10 (13025) . doi:10.1038/s41598-020-69930-y <https://doi.org/10.1038/s41598-020-69930-y> , hdl:10013/epic.24929bd1-5b38-4b02-89c5-d6e8072915c4 |
op_doi |
https://doi.org/10.1038/s41598-020-69930-y |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
_version_ |
1810463674444283904 |