Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter
IntroductionDissolved organic matter (DOM) composition varies over space and time, with a multitude of factors driving the presence or absence of each compound found in the complex DOM mixture. Compounds ubiquitously present across a wide range of river systems (hereafter termed core compounds) may...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Water |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/frwa.2023.1156042/full |
| _version_ | 1797856286621040640 |
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| author | Masumi Stadler Malcolm A. Barnard Malcolm A. Barnard Kadir Bice Michaela L. de Melo Dipankar Dwivedi Erika C. Freeman Vanessa A. Garayburu-Caruso Annika Linkhorst Erick Mateus-Barros Cheng Shi Andrew J. Tanentzap Andrew J. Tanentzap Christof Meile |
| author_facet | Masumi Stadler Malcolm A. Barnard Malcolm A. Barnard Kadir Bice Michaela L. de Melo Dipankar Dwivedi Erika C. Freeman Vanessa A. Garayburu-Caruso Annika Linkhorst Erick Mateus-Barros Cheng Shi Andrew J. Tanentzap Andrew J. Tanentzap Christof Meile |
| author_sort | Masumi Stadler |
| collection | DOAJ |
| description | IntroductionDissolved organic matter (DOM) composition varies over space and time, with a multitude of factors driving the presence or absence of each compound found in the complex DOM mixture. Compounds ubiquitously present across a wide range of river systems (hereafter termed core compounds) may differ in chemical composition and reactivity from compounds present in only a few settings (hereafter termed satellite compounds). Here, we investigated the spatial patterns in DOM molecular formulae presence (occupancy) in surface water and sediments across 97 river corridors at a continental scale using the “Worldwide Hydrobiogeochemical Observation Network for Dynamic River Systems—WHONDRS” research consortium.MethodsWe used a novel data-driven approach to identify core and satellite compounds and compared their molecular properties identified with Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS).ResultsWe found that core compounds clustered around intermediate hydrogen/carbon and oxygen/carbon ratios across both sediment and surface water samples, whereas the satellite compounds varied widely in their elemental composition. Within surface water samples, core compounds were dominated by lignin-like formulae, whereas protein-like formulae dominated the core pool in sediment samples. In contrast, satellite molecular formulae were more evenly distributed between compound classes in both sediment and water molecules. Core compounds found in both sediment and water exhibited lower molecular mass, lower oxidation state, and a higher degree of aromaticity, and were inferred to be more persistent than global satellite compounds. Higher putative biochemical transformations were found in core than satellite compounds, suggesting that the core pool was more processed.DiscussionThe observed differences in chemical properties of core and satellite compounds point to potential differences in their sources and contribution to DOM processing in river corridors. Overall, our work points to the potential of data-driven approaches separating rare and common compounds to reduce some of the complexity inherent in studying riverine DOM. |
| first_indexed | 2024-04-09T20:38:00Z |
| format | Article |
| id | doaj.art-794c37243eee4180aa0ed9376c26eabb |
| institution | Directory Open Access Journal |
| issn | 2624-9375 |
| language | English |
| last_indexed | 2024-04-09T20:38:00Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Water |
| spelling | doaj.art-794c37243eee4180aa0ed9376c26eabb2023-03-30T06:42:59ZengFrontiers Media S.A.Frontiers in Water2624-93752023-03-01510.3389/frwa.2023.11560421156042Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matterMasumi Stadler0Malcolm A. Barnard1Malcolm A. Barnard2Kadir Bice3Michaela L. de Melo4Dipankar Dwivedi5Erika C. Freeman6Vanessa A. Garayburu-Caruso7Annika Linkhorst8Erick Mateus-Barros9Cheng Shi10Andrew J. Tanentzap11Andrew J. Tanentzap12Christof Meile13Groupe de recherche interuniversitaire en limnologie (GRIL), Département des sciences biologiques, Université du Québec à Montréal, Montréal, QC, CanadaCenter for Reservoir and Aquatic Systems Research and Department of Biology, Baylor University, Waco, TX, United StatesInstitute of Marine Sciences and Department of Earth, Marine, and Environmental Sciences, University of North Carolina at Chapel Hill, Morehead City, NC, United StatesDepartment of Marine Sciences, University of Georgia, Athens, GA, United StatesGroupe de recherche interuniversitaire en limnologie (GRIL), Département des sciences biologiques, Université du Québec à Montréal, Montréal, QC, CanadaClimate & Ecosystem Sciences, Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, United StatesEcosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, United KingdomEarth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, United StatesEnvironmental Radioactivity and Monitoring, Federal Institute of Hydrology (BfG), Koblenz, GermanyLaboratory of Microbial Processes & Biodiversity, Departamento de Hidrobiologia, Universidade Federal de São Carlos (UFSCar), São Carlos, SP, Brazil0Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, United StatesEcosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom1Ecosystems and Global Change Group, School of the Environment, Trent University, Peterborough, ON, CanadaDepartment of Marine Sciences, University of Georgia, Athens, GA, United StatesIntroductionDissolved organic matter (DOM) composition varies over space and time, with a multitude of factors driving the presence or absence of each compound found in the complex DOM mixture. Compounds ubiquitously present across a wide range of river systems (hereafter termed core compounds) may differ in chemical composition and reactivity from compounds present in only a few settings (hereafter termed satellite compounds). Here, we investigated the spatial patterns in DOM molecular formulae presence (occupancy) in surface water and sediments across 97 river corridors at a continental scale using the “Worldwide Hydrobiogeochemical Observation Network for Dynamic River Systems—WHONDRS” research consortium.MethodsWe used a novel data-driven approach to identify core and satellite compounds and compared their molecular properties identified with Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS).ResultsWe found that core compounds clustered around intermediate hydrogen/carbon and oxygen/carbon ratios across both sediment and surface water samples, whereas the satellite compounds varied widely in their elemental composition. Within surface water samples, core compounds were dominated by lignin-like formulae, whereas protein-like formulae dominated the core pool in sediment samples. In contrast, satellite molecular formulae were more evenly distributed between compound classes in both sediment and water molecules. Core compounds found in both sediment and water exhibited lower molecular mass, lower oxidation state, and a higher degree of aromaticity, and were inferred to be more persistent than global satellite compounds. Higher putative biochemical transformations were found in core than satellite compounds, suggesting that the core pool was more processed.DiscussionThe observed differences in chemical properties of core and satellite compounds point to potential differences in their sources and contribution to DOM processing in river corridors. Overall, our work points to the potential of data-driven approaches separating rare and common compounds to reduce some of the complexity inherent in studying riverine DOM.https://www.frontiersin.org/articles/10.3389/frwa.2023.1156042/fullDOM (dissolved organic matter)FT-ICR-MSriverssedimentsurface waterhigh-resolution mass spectrometry (HRMS) |
| spellingShingle | Masumi Stadler Malcolm A. Barnard Malcolm A. Barnard Kadir Bice Michaela L. de Melo Dipankar Dwivedi Erika C. Freeman Vanessa A. Garayburu-Caruso Annika Linkhorst Erick Mateus-Barros Cheng Shi Andrew J. Tanentzap Andrew J. Tanentzap Christof Meile Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter Frontiers in Water DOM (dissolved organic matter) FT-ICR-MS rivers sediment surface water high-resolution mass spectrometry (HRMS) |
| title | Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter |
| title_full | Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter |
| title_fullStr | Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter |
| title_full_unstemmed | Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter |
| title_short | Applying the core-satellite species concept: Characteristics of rare and common riverine dissolved organic matter |
| title_sort | applying the core satellite species concept characteristics of rare and common riverine dissolved organic matter |
| topic | DOM (dissolved organic matter) FT-ICR-MS rivers sediment surface water high-resolution mass spectrometry (HRMS) |
| url | https://www.frontiersin.org/articles/10.3389/frwa.2023.1156042/full |
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