Evidence map›Paper›PMID 35294222›Full record

ArticlemBio2022

Evolution of the Quorum Sensing Regulon in Cooperating Populations of Pseudomonas aeruginosa.

Nicole E Smalley, Amy L Schaefer, Kyle L Asfahl, Crystal Perez, E Peter Greenberg, Ajai A Dandekar

Abstract read
In one paragraph

Article in mBio, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Inactivation of MexT inJournal of bacteriology · 2026
    Article
  2. Review
  3. Inactivation of MexT inbioRxiv : the preprint server for biology · 2025
    Article
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  5. Anti-infective synergy of3 Biotech · 2025
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  6. Outer membrane permeability ofMicrobiology spectrum · 2025
    Article
  7. Article
  8. Article
  9. The relationship betweenJournal of bacteriology · 2024
    Article
  10. Targeted deletion of Pf prophages from diverseJournal of bacteriology · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Targeted deletion of Pf prophages from diversebioRxiv : the preprint server for biology · 2023
    Article
  18. Review
  19. Article
  20. AmBio · 2023
    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

6 authors.

Nicole E SmalleyDepartment of Medicine, University of Washingtongrid.34477.33, Seattle, Washington, USA.
Amy L SchaeferDepartment of Microbiology, University of Washingtongrid.34477.33, Seattle, Washington, USA.ORCID 0000-0003-0581-054X
Kyle L AsfahlDepartment of Medicine, University of Washingtongrid.34477.33, Seattle, Washington, USA.ORCID 0000-0001-5626-3529
Crystal PerezDepartment of Microbiology, University of Washingtongrid.34477.33, Seattle, Washington, USA.
E Peter GreenbergDepartment of Microbiology, University of Washingtongrid.34477.33, Seattle, Washington, USA.ORCID 0000-0001-9474-8041
Ajai A DandekarDepartment of Medicine, University of Washingtongrid.34477.33, Seattle, Washington, USA.ORCID 0000-0002-2992-6523

Funding

QUORUM SENSING IN PSEUDOMONAS AERUGINOSAR01GM059026 · NIGMS · UNIVERSITY OF WASHINGTON · PI GREENBERG, EVERETT P · 1999 to 2019
$6.5M
Quorum sensing in Pseudomonas aeruginosa - Equipment SupplementR35GM136218 · NIGMS · UNIVERSITY OF WASHINGTON · PI Everett P Greenberg · 2020 to 2026
$2.9M
Pseudomonas aeruginosa quorum sensingR01GM125714 · NIGMS · UNIVERSITY OF WASHINGTON · PI DANDEKAR, AJAI · 2018 to 2022
$1.6M
Mechanisms to restrain social cheating from quorum sensing in Pseudomonas aeruginK08AI102921 · NIAID · UNIVERSITY OF WASHINGTON · PI DANDEKAR, AJAI · 2013 to 2016
$703k
Burroughs Wellcome Fund (BWF) 1012253Cystic Fibrosis Foundation (CFF) ASFAHL19F0Doris Duke Charitable Foundation (DDCF) 2019161HHS | NIH | National Institute of General Medical Sciences (NIGMS) R01GM059026HHS | NIH | National Institute of General Medical Sciences (NIGMS) R01GM125714HHS | NIH | National Institute of General Medical Sciences (NIGMS) R35GM136218NIAID NIH HHS K08 AI102921NIGMS NIH HHS R01 GM059026NIGMS NIH HHS R01 GM125714NIGMS NIH HHS R35 GM136218
6 · The paper itself

Abstract

In the opportunistic pathogenic bacterium Pseudomonas aeruginosa acyl-homoserine lactone quorum sensing (QS) can activate expression of dozens to hundreds of genes depending on the strain under investigation. Many QS-activated genes code for extracellular products. P. aeruginosa has become a model for studies of cell-cell communication and coordination of cooperative activities, which result from production of extracellular products. We hypothesized that strain variation in the size of the QS regulon might reflect the environmental history of an isolate. We tested the hypothesis by performing long-term growth experiments with the well-studied strain PAO1, which has a relatively large QS regulon, under conditions where only limited QS-controlled functions are required. We grew P. aeruginosa for about 1000 generations in a condition where expression of QS-activated genes was required, and emergence of QS mutants was constrained and compared the QS regulons of populations after 35 generations to those after about 1000 generations in two independent lineages by using quorum quenching and RNA-seq technology. In one lineage the number of QS-activated genes identified was reduced by over 60% and in the other by about 30% in 1000-generation populations compared to 35-generation populations. Our results provide insight about the variations in the number of QS-activated genes reported for different P. aeruginosa environmental and clinical isolates and, about how environmental conditions might influence social evolution.

Indexed as

Pseudomonas aeruginosaQuorum SensingBacterial ProteinsGene Expression Regulation, BacterialRegulonBacterial Proteinsacyl-homoserine lactoneadaptive evolutionmetatranscriptomicsquorum quenching

Identifiers

PMID35294222
PMCPMC8863103

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.