Evidence map›Paper›PMID 30065310›Full record

ArticleThe ISME journal2018

Low spatial structure and selection against secreted virulence factors attenuates pathogenicity in Pseudomonas aeruginosa.

Elisa T Granato, Christoph Ziegenhain, Rasmus L Marvig, Rolf Kümmerli

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 54 citations in OpenAlex.

  1. Genomic and phenotypic diversification ofMicrobiology spectrum · 2026
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  17. Genomic and Metabolic Characteristics of the Pathogenicity inInternational journal of molecular sciences · 2021
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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

4 authors at 3 institutions in 5 countries.

Elisa T GranatoDepartment of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland. elisa.granato@zoo.ox.ac.uk.ORCID http://orcid.org/0000-0003-1581-2899
Christoph ZiegenhainDepartment Biology II, Ludwig-Maximilians-University, Munich, Germany.
Rasmus L MarvigCenter for Genomic Medicine, Rigshospitalet, Copenhagen, Denmark.
Rolf KümmerliDepartment of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland.
University of Zurich · CHKarolinska Institutet · SERigshospitalet · DK

Funding

European Research Council 681295Swiss National Science Foundation 165835
6 · The paper itself

Abstract

Bacterial opportunistic pathogens are feared for their difficult-to-treat nosocomial infections and for causing morbidity in immunocompromised patients. Here, we study how such a versatile opportunist, Pseudomonas aeruginosa, adapts to conditions inside and outside its model host Caenorhabditis elegans, and use phenotypic and genotypic screens to identify the mechanistic basis of virulence evolution. We found that virulence significantly dropped in unstructured environments both in the presence and absence of the host, but remained unchanged in spatially structured environments. Reduction of virulence was either driven by a substantial decline in the production of siderophores (in treatments without hosts) or toxins and proteases (in treatments with hosts). Whole-genome sequencing of evolved clones revealed positive selection and parallel evolution across replicates, and showed an accumulation of mutations in regulator genes controlling virulence factor expression. Our study identifies the spatial structure of the non-host environment as a key driver of virulence evolution in an opportunistic pathogen.

Indexed as

Host-Pathogen InteractionsAnimalsBacterial ProteinsCaenorhabditis elegansCross InfectionDisease Models, AnimalHumansMutationPseudomonas aeruginosaPseudomonas InfectionsSiderophoresVirulenceVirulence FactorsBacterial ProteinsSiderophoresVirulence Factors

Identifiers

PMID30065310
PMCPMC6215480
OpenAlexW2950935112

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.