Evidence map›Paper›PMID 33746204›Full record

ArticleThe ISME journal2021

The soil microbial food web revisited: Predatory myxobacteria as keystone taxa?

Sebastian Petters, Verena Groß, Andrea Söllinger, Michelle Pichler, Anne Reinhard, Mia Maria Bengtsson, Tim Urich

Open access · hybridAbstract read
In one paragraph

Article in The ISME journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
21.2field-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

80 citing papers in PubMed, 184 citations in OpenAlex.

  1. Article
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  11. Biocontrol of watermelon Fusarium wilt caused byFrontiers in microbiology · 2026
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  14. Enrichment isolation and metabolic characteristics ofApplied and environmental microbiology · 2025
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

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

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

7 authors at 1 institution in 2 countries.

Sebastian PettersInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.ORCID http://orcid.org/0000-0003-4928-8167
Verena GroßInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.
Andrea SöllingerInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.
Michelle PichlerInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.
Anne ReinhardInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.
Mia Maria BengtssonInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany.
Tim UrichInstitute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, Greifswald, Germany. tim.urich@uni-greifswald.de.ORCID http://orcid.org/0000-0002-5718-1354
Universität Greifswald · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Trophic interactions are crucial for carbon cycling in food webs. Traditionally, eukaryotic micropredators are considered the major micropredators of bacteria in soils, although bacteria like myxobacteria and Bdellovibrio are also known bacterivores. Until recently, it was impossible to assess the abundance of prokaryotes and eukaryotes in soil food webs simultaneously. Using metatranscriptomic three-domain community profiling we identified pro- and eukaryotic micropredators in 11 European mineral and organic soils from different climes. Myxobacteria comprised 1.5-9.7% of all obtained SSU rRNA transcripts and more than 60% of all identified potential bacterivores in most soils. The name-giving and well-characterized predatory bacteria affiliated with the Myxococcaceae were barely present, while Haliangiaceae and Polyangiaceae dominated. In predation assays, representatives of the latter showed prey spectra as broad as the Myxococcaceae. 18S rRNA transcripts from eukaryotic micropredators, like amoeba and nematodes, were generally less abundant than myxobacterial 16S rRNA transcripts, especially in mineral soils. Although SSU rRNA does not directly reflect organismic abundance, our findings indicate that myxobacteria could be keystone taxa in the soil microbial food web, with potential impact on prokaryotic community composition. Further, they suggest an overlooked, yet ecologically relevant food web module, independent of eukaryotic micropredators and subject to separate environmental and evolutionary pressures.

Indexed as

Food ChainMyxococcalesAnimalsPredatory BehaviorRNA, Ribosomal, 16SSoilSoil MicrobiologyRNA, Ribosomal, 16SSoil

Identifiers

PMID33746204
PMCPMC8397742
OpenAlexW3137196152

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.