Evidence map›Paper›PMID 34267366›Full record

ArticleNature ecology & evolution2021

Obligate cross-feeding expands the metabolic niche of bacteria.

Leonardo Oña, Samir Giri, Neele Avermann, Maximilian Kreienbaum, Kai M Thormann, Christian Kost

Abstract read
PubMed Publisher
In one paragraph

Article in Nature ecology & evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
–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

67 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Principles for Rigorous Design and Application of Synthetic Microbial Communities.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Pooled it
  2. Family matters in the root microbiota.Nature microbiology · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Cooperative traits maintain bacterial niche breadth.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Cooperation and the evolution of bacterial niche breadth.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Peat promotes production of the edible mushroomFrontiers in microbiology · 2026
    Article
  15. Boundary conditions for exploiting the cooperation ofApplied and environmental microbiology · 2025
    Article
  16. Article
  17. Article
  18. Review
  19. iScience · 2025
    Article
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Leonardo Oña *Department of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.ORCID http://orcid.org/0000-0002-0883-7134
Samir Giri *Department of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.ORCID http://orcid.org/0000-0003-1771-3288
Neele Avermann *Department of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany.ORCID http://orcid.org/0000-0001-7425-1732
Maximilian KreienbaumDepartment of Microbiology and Molecular Biology, Justus-Liebig-Universität, Gießen, Germany.ORCID http://orcid.org/0000-0002-5106-1802
Kai M ThormannDepartment of Microbiology and Molecular Biology, Justus-Liebig-Universität, Gießen, Germany.ORCID http://orcid.org/0000-0001-7292-4884
Christian KostDepartment of Ecology, School of Biology/Chemistry, Osnabrück University, Osnabrück, Germany. christiankost@gmail.com.ORCID http://orcid.org/0000-0002-7870-7343

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacteria frequently engage in obligate metabolic mutualisms with other microorganisms. However, it remains generally unclear how the resulting metabolic dependencies affect the ecological niche space accessible to the whole consortium relative to the niche space available to its constituent individuals. Here we address this issue by systematically cultivating metabolically dependent strains of different bacterial species either individually or as pairwise cocultures in a wide range of carbon sources. Our results show that obligate cross-feeding is significantly more likely to expand the metabolic niche space of interacting bacterial populations than to contract it. Moreover, niche expansion occurred predominantly between two specialist taxa and correlated positively with the phylogenetic distance between interaction partners. Together, our results demonstrate that obligate cross-feeding can significantly expand the ecological niche space of interacting bacterial genotypes, thus explaining the widespread occurrence of this type of ecological interaction in natural microbiomes.

Indexed as

BacteriaMicrobiotaCarbonHumansPhylogenySymbiosisCarbon

Identifiers

What OpenQuestion holds

Textmetadata
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.