Evidence map›Paper›PMID 29665015›Full record

ArticleEvolution; international journal of organic evolution2018

The bacterium Pseudomonas aeruginosa senses and gradually responds to interspecific competition for iron.

Anne Leinweber, Michael Weigert, Rolf Kümmerli

Abstract read
In one paragraph

Article in Evolution; international journal of organic evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. R pyocin sensitivity ofJournal of medical microbiology · 2026
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  2. Virulence · 2025
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  3. Variable inhibition of differentApplied and environmental microbiology · 2025
    Article
  4. Article
  5. Article
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  7. Article
  8. Co-occurring microflora and mucin driveISME communications · 2024
    Article
  9. Iron acquisition strategies in pseudomonads: mechanisms, ecology, and evolution.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Single-Cell Imaging Reveals ThatFrontiers in cellular and infection microbiology · 2021
    Article
  18. Haemophilin-Producing Strains ofPathogens (Basel, Switzerland) · 2021
    Article
  19. Article
  20. 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

3 authors.

Anne LeinweberDepartment of Plant and Microbial Biology, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
Michael WeigertDepartment of Plant and Microbial Biology, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
Rolf KümmerliDepartment of Plant and Microbial Biology, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phenotypic plasticity in response to competition is a well-described phenomenon in higher organisms. Here, we show that also bacteria have the ability to sense the presence of competitors and mount fine-tuned responses to match prevailing levels of competition. In our experiments, we studied interspecific competition for iron between the bacterium Pseudomonas aeruginosa (PA) and its competitor Burkholderia cenocepacia (BC). We focused on the ability of PA to phenotypically adjust the production of pyoverdine, an iron-scavenging siderophore. We found that PA upregulates pyoverdine production early on during competition under condition of low iron availability. This plastic upregulation was fine-tuned in response to the level of competition imposed by BC, and seems to confer a relative fitness benefit to PA in the form of an earlier initiation of growth. At later time points, however, PA showed reduced growth in mixed compared to monoculture, suggesting that competitive responses are costly. Altogether, our results demonstrate that phenotypic plasticity in siderophore production plays an important role in interspecific competition for iron. Upregulating siderophore production may be a powerful strategy to lock iron away from competing species, and to reserve this nutrient for strain members possessing the compatible receptor for uptake.

Indexed as

Competition sensinginter-specific competitionmicrobe-microbe interactionsphenotypic plasticitysiderophores

Identifiers

PMID29665015
PMCPMC6314444

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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.