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| Main Authors: | , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2018
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.888852 |
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| _version_ | 1867167676039692288 |
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| author | Zark, Maren Dittmar, Thorsten |
| author_facet | Zark, Maren Dittmar, Thorsten |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Natural dissolved organic matter (DOM) comprises a broad range of dissolved organic molecules in aquatic systems and is among the most complex molecular mixtures known. Here we show, by comparing detailed structural fingerprints of individual molecular formulae in DOM from a set of four marine and one freshwater environments, that a major component of DOM is molecularly indistinguishable in these diverse samples. Molecular conformity was not only apparent by the co-occurrence of thousands of identical molecular formulae, but also by identical structural features of those isomers that collectively represent a molecular formula. The presence of a large pool of compounds with identical structural features in DOM is likely the result of a cascade of degradation processes or common synthetic pathways that ultimately lead to the formation of a universal background, regardless of origin and history of the organic material. This novel insight impacts our understanding of long-term turnover of DOM as the underlying mechanisms are possibly universal. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_888852 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Dissolved organic matter composition and structural fingerprints from a set of four marine and one freshwater environments Zark, Maren Dittmar, Thorsten Natural dissolved organic matter (DOM) comprises a broad range of dissolved organic molecules in aquatic systems and is among the most complex molecular mixtures known. Here we show, by comparing detailed structural fingerprints of individual molecular formulae in DOM from a set of four marine and one freshwater environments, that a major component of DOM is molecularly indistinguishable in these diverse samples. Molecular conformity was not only apparent by the co-occurrence of thousands of identical molecular formulae, but also by identical structural features of those isomers that collectively represent a molecular formula. The presence of a large pool of compounds with identical structural features in DOM is likely the result of a cascade of degradation processes or common synthetic pathways that ultimately lead to the formation of a universal background, regardless of origin and history of the organic material. This novel insight impacts our understanding of long-term turnover of DOM as the underlying mechanisms are possibly universal. |
| title | Dissolved organic matter composition and structural fingerprints from a set of four marine and one freshwater environments |
| topic | |
| url | https://doi.org/10.1594/PANGAEA.888852 |