ArticleProceedings of the National Academy of Sciences of the United States of America2023
Dominant heterocyclic composition of dissolved organic nitrogen in the ocean: A new paradigm for cycling and persistence.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 26 citations in OpenAlex.
- Desalination of Seawater: Comprehensive Nontarget Assessment of Disinfection Byproducts.Environment & health (Washington, D.C.) · 2026Article
- Harnessing microalgae for the biosynthesis of molecular crystals.Nature biotechnology · 2026Article
- Temperature Thresholds Govern Microbial-Mediated Dissolved Organic Carbon Dynamics in Coastal Ecosystems.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Urea use drives niche separation between dominant marine ammonia oxidizing archaea.Nature communications · 2025Article
- Crystalline guanine: Rediscovery of a long-overlooked structure of unicellular eukaryotes.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Compound-Specific and Intramolecular δAnalytical chemistry · 2025Article
- Constraining biorecalcitrance of carboxyl-rich alicyclic molecules in the ocean.Science advances · 2025Article
- Unveiling ongoing biogeochemical dynamics of CDOM from surface to deep ocean.Nature communications · 2025Article
- Nitrogen use efficiency underlies cross-ecosystem variation in marine primary production.Scientific reports · 2024Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
Marine dissolved organic nitrogen (DON) is one of the planet's largest reservoirs of fixed N, which persists even in the N-limited oligotrophic surface ocean. The vast majority of the ocean's total DON reservoir is refractory (RDON), primarily composed of low molecular weight (LMW) compounds in the subsurface and deep sea. However, the composition of this major N pool, as well as the reasons for its accumulation and persistence, are not understood. Past characterization of the analytically more tractable, but quantitatively minor, high molecular weight (HMW) DON fraction revealed a functionally simple amide-dominated composition. While extensive work in the past two decades has revealed enormous complexity and structural diversity in LMW dissolved organic carbon, no efforts have specifically targeted LMW nitrogenous molecules. Here, we report the first coupled isotopic and solid-state NMR structural analysis of LMW DON isolated throughout the water column in two ocean basins. Together these results provide a first view into the composition, potential sources, and cycling of this dominant portion of marine DON. Our data indicate that RDON is dominated by
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.