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Lechtenfeld, O.J.* ; Hertkorn, N. ; Shen, Y.* ; Witt, M.* ; Benner, R.*

Marine sequestration of carbon in bacterial metabolites.

Nat. Commun. 6:6711 (2015)
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Linking microbial metabolomics and carbon sequestration in the ocean via refractory organic molecules has been hampered by the chemical complexity of dissolved organic matter (DOM). Here, using bioassay experiments and ultra-high resolution metabolic profiling, we demonstrate that marine bacteria rapidly utilize simple organic molecules and produce exometabolites of remarkable molecular and structural diversity. Bacterial DOM is similar in chemical composition and structural complexity to naturally occurring DOM in sea water. An appreciable fraction of bacterial DOM has molecular and structural properties that are consistent with those of refractory molecules in the ocean, indicating a dominant role for bacteria in shaping the refractory nature of marine DOM. The rapid production of chemically complex and persistent molecules from simple biochemicals demonstrates a positive feedback between primary production and refractory DOM formation. It appears that carbon sequestration in diverse and structurally complex dissolved molecules that persist in the environment is largely driven by bacteria.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Dissolved Organic-matter; Mass-spectrometry; Ocean; Seawater; Sea; Decomposition; Recalcitrant; Components; Insights; Nitrogen
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 2041-1723
e-ISSN 2041-1723
Journal Nature Communications
Quellenangaben Volume: 6, Issue: , Pages: , Article Number: 6711 Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed
Institute(s) Research Unit BioGeoChemistry and Analytics (BGC)
POF-Topic(s) 30202 - Environmental Health
Research field(s) Environmental Sciences
PSP Element(s) G-504800-001
PubMed ID 25826720
DOI 10.1038/ncomms7711
WOS ID WOS:000353044600001
Scopus ID 84926431848
Erfassungsdatum 2015-04-02
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