Evidence map›Paper›PMID 42637887›Full record

ArticleNature microbiology2026

Obligate cross-feeding of metabolites is common in soil microbial communities.

Ghada Yousif, Francisco Zorrilla, Swagatika Dash, Leonardo Oña, Aditi Shekhar, Samir Giri, Rui Guan, Sharvari Harshe, Michael Itermann, Daphne Welter and 3 more

Abstract read
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In one paragraph

Article in Nature microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

  1. Cross-feeding enables robust coexistence between four bacterial species.Proceedings of the National Academy of Sciences of the United States of America · 2026
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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

13 authors.

Ghada Yousif *Division of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany. ghada.myousif@gmail.com.ORCID http://orcid.org/0000-0002-3987-7067
Francisco Zorrilla *Medical Research Council Toxicology Unit and Department of Biochemistry, University of Cambridge, Cambridge, UK.
Swagatika DashDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.
Leonardo OñaDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.ORCID http://orcid.org/0000-0002-0883-7134
Aditi ShekharDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.
Samir GiriDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.
Rui GuanMedical Research Council Toxicology Unit and Department of Biochemistry, University of Cambridge, Cambridge, UK.
Sharvari HarsheDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.
Michael ItermannDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.
Daphne WelterGenomics Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany.
Vladimir BenesGenomics Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany.ORCID http://orcid.org/0000-0002-0352-2547
Kiran R PatilMedical Research Council Toxicology Unit and Department of Biochemistry, University of Cambridge, Cambridge, UK. kp533@cam.ac.uk.ORCID http://orcid.org/0000-0002-6166-8640
Christian KostDivision of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany. christiankost@gmail.com.ORCID http://orcid.org/0000-0002-7870-7343

Funding

Deutsche Forschungsgemeinschaft (German Research Foundation) 404123428, 404127434, 504072468, 525853121, 180879236, 468803810, 438901283),Deutscher Akademischer Austauschdienst (German Academic Exchange Service) DAAD German-Egyptian Long-Term program, DAAD End of Scholarship GrantsEC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) grant 866028Volkswagen Foundation (VolkswagenStiftung) Az: 9B831
6 · The paper itself

Abstract

Ecological theory predicts that obligate cross-feeding of metabolites is common in microbial communities. However, systematic studies testing this prediction in natural microbial communities such as soil are missing, thus hindering the understanding of these ecologically important ecosystems. Here we address this gap by analysing 6,931 bacterial isolates from 27 soil microbial communities sampled in Germany. We find that the growth of up to 50% of community members depended on supplementation with amino acids, vitamins or nucleobases. For 73% of isolates, supplementation with multiple amino acids was necessary. Genomic analysis of 62 strains revealed that accumulation of insertion sequences and gene loss was associated with the observed auxotrophic phenotypes. Genome-scale metabolic models, computational analyses and cocultivation experiments suggest other co-occurring genotypes complement the metabolic needs of auxotrophs, thus enabling their growth and survival. Together, our results indicate that soil bacteria probably exist within integrated metabolic networks rather than as metabolically autonomous units.

Indexed as

BacteriaSoil MicrobiologyAmino AcidsGermanyMetabolic Networks and PathwaysVitaminsAmino AcidsVitamins

Identifiers

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Registered trials

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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.