Evidence map›Paper›PMID 25472701›Full record

ArticleEnvironmental microbiology reports2015

The exopolysaccharide Psl-eDNA interaction enables the formation of a biofilm skeleton in Pseudomonas aeruginosa.

Shiwei Wang, Xi Liu, Hongsheng Liu, Li Zhang, Yuan Guo, Shan Yu, Daniel J Wozniak, Luyan Z Ma

Open access · bronzeAbstract read
In one paragraph

Article in Environmental microbiology reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

82 citing papers in PubMed, 140 citations in OpenAlex.

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  12. Anti-Biofilm Agents to OvercomePharmaceuticals (Basel, Switzerland) · 2025
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  16. Antibiotics (Basel, Switzerland) · 2024
    Review
  17. Article
  18. Review
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22 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

8 authors at 4 institutions in 3 countries.

Shiwei WangState Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
Xi Liu
Hongsheng Liu
Li Zhang
Yuan Guo
Shan Yu
Daniel J Wozniak
Luyan Z Ma
Chinese Academy of Sciences · CNLiaoning University · CNInterface (United States) · USUniversity of Tübingen · DE

Funding

Pseudomonas biofilms and immunityR01AI097511 · NIAID · OHIO STATE UNIVERSITY · PI WOZNIAK, DANIEL J · 2013 to 2017
$1.9M
NIAID NIH HHS R01 AI097511
6 · The paper itself

Abstract

A hallmark of bacterial biofilms is a self-produced extracellular matrix of exopolysaccharide, extracellular DNA (eDNA) and proteins that hold bacterial cells together in the community. However, interactions among matrix components and how the interactions contribute to the formation of matrix remain unclear. Here, we show the physical interaction between exopolysaccharide Psl and eDNA, the two key biofilm matrix components of the opportunistic pathogen Pseudomonas aeruginosa. The interaction allows the two components to combine to form a web of eDNA-Psl fibres, which resembles a biofilm skeleton in the centre of pellicles to give bacteria structural support and capability against agents targeted on one matrix component. The web of eDNA-Psl fibres was also found in flow-cell biofilms at microcolonies initiation stage. The colocalization of eDNA or Psl fibres with bacterial cell membrane stain suggests that fibre-like eDNA is likely derived from the lysis of dead bacteria in biofilms. Psl can interact with DNA from diverse sources, suggesting that P. aeruginosa has the ability to use DNA of other organisms (such as human neutrophils and other bacterial species) to form its own communities, which might increase the survival of P. aeruginosa in multispecies biofilms or within a human host.

Indexed as

Bacterial AdhesionBiofilmsDNAHumansPolysaccharides, BacterialPseudomonas aeruginosaDNAPolysaccharides, Bacterial

Identifiers

PMID25472701
PMCPMC4656019
OpenAlexW2129813382

What OpenQuestion holds

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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.