Evidence map›Paper›PMID 38168076›Full record

ArticleNature communications2024

Universal microbial reworking of dissolved organic matter along environmental gradients.

Erika C Freeman, Erik J S Emilson, Thorsten Dittmar, Lucas P P Braga, Caroline E Emilson, Tobias Goldhammer, Christine Martineau, Gabriel Singer, Andrew J Tanentzap

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
35.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 78 citations in OpenAlex.

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  11. Logging disrupts the ecology of molecules in headwater streams.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Article
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  15. Article
  16. Soil viral-host interactions regulate microplastic-dependent carbon storage.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 7 institutions in 5 countries.

Erika C FreemanEcosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK. erika.freem@gmail.com.ORCID 0000-0001-7161-6038
Erik J S EmilsonNatural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, 1219 Queen St. E., Sault Ste, Marie, ON, P6A 2E5, Canada.ORCID 0000-0002-1516-9728
Thorsten DittmarInstitute for Chemistry and Biology of the Marine Environment, University of Oldenburg, 26129, Oldenburg, Germany.ORCID 0000-0002-3462-0107
Lucas P P BragaEcosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK.ORCID 0000-0003-2789-7252
Caroline E EmilsonNatural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, 1219 Queen St. E., Sault Ste, Marie, ON, P6A 2E5, Canada.
Tobias GoldhammerDepartment of Ecohydrology and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Mueggelseedamm, 301, Berlin, Germany.ORCID 0000-0001-8897-4659
Christine MartineauNatural Resources Canada, Laurentian Forestry Centre, 1055 Du P.E.P.S. Street, P.O. Box 10380, Québec, G1V 4C7, Canada.
Gabriel SingerDepartment of Ecology, University of Innsbruck, Technikerstrasse 25, 6020, Innsbruck, Austria.
Andrew J TanentzapEcosystems and Global Change Group, Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK.ORCID 0000-0002-2883-1901
Canadian Forest Service · CAUniversity of Cambridge · GBBridge University · SSCarl von Ossietzky Universität Oldenburg · DELeibniz Institute of Freshwater Ecology and Inland Fisheries · DENatural Resources Canada · CAUniversität Innsbruck · AT

Funding

EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) 804673Gates Cambridge Trust OPP1144
6 · The paper itself

Abstract

Soils are losing increasing amounts of carbon annually to freshwaters as dissolved organic matter (DOM), which, if degraded, can offset their carbon sink capacity. However, the processes underlying DOM degradation across environments are poorly understood. Here we show DOM changes similarly along soil-aquatic gradients irrespective of environmental differences. Using ultrahigh-resolution mass spectrometry, we track DOM along soil depths and hillslope positions in forest catchments and relate its composition to soil microbiomes and physico-chemical conditions. Along depths and hillslopes, we find carbohydrate-like and unsaturated hydrocarbon-like compounds increase in abundance-weighted mass, and the expression of genes essential for degrading plant-derived carbohydrates explains >50% of the variation in abundance of these compounds. These results suggest that microbes transform plant-derived compounds, leaving DOM to become increasingly dominated by the same (i.e., universal), difficult-to-degrade compounds as degradation proceeds. By synthesising data from the land-to-ocean continuum, we suggest these processes generalise across ecosystems and spatiotemporal scales. Such general degradation patterns can help predict DOM composition and reactivity along environmental gradients to inform management of soil-to-stream carbon losses.

Indexed as

Dissolved Organic MatterMicrobiotaCarbonOrganic ChemicalsSoilCarbonDissolved Organic MatterOrganic ChemicalsSoil

Identifiers

PMID38168076
PMCPMC10762207
OpenAlexW4390511984

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.