Evidence map›Paper›PMID 18790868›Full record

ArticleJournal of bacteriology2008

PecS is a global regulator of the symptomatic phase in the phytopathogenic bacterium Erwinia chrysanthemi 3937.

Florence Hommais, Christine Oger-Desfeux, Frédérique Van Gijsegem, Sandra Castang, Sandrine Ligori, Dominique Expert, William Nasser, Sylvie Reverchon

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
6.5field-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

45 citing papers in PubMed, 100 citations in OpenAlex.

  1. Review
  2. Antagonistic Interactions BetweenInternational journal of molecular sciences · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Transcription Factor PecS MediatesJournal of bacteriology · 2023
    Article
  9. Article
  10. Article
  11. Genomic Comparisons and Phenotypic Diversity ofFrontiers in plant science · 2022
    Article
  12. Article
  13. Review
  14. Article
  15. Microorganisms · 2021
    Review
  16. Article
  17. Review
  18. 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

8 authors at 6 institutions in 1 country.

Florence HommaisCNRS UMR 5240 Microbiologie, Adaptation et Pathogénie, Université Lyon 1, Bâtiment André Lwoff, 10 rue Raphaël Dubois, F-69622 Villeurbanne Cedex, France.
Christine Oger-Desfeux
Frédérique Van Gijsegem
Sandra Castang
Sandrine Ligori
Dominique Expert
William Nasser
Sylvie Reverchon
Institut National des Sciences Appliquées de Lyon · FRUniversité Claude Bernard Lyon 1 · FRAgroParisTech · FRCentre National de la Recherche Scientifique · FRLaboratoire de Microbiologie, Adaptation et Pathogénie · FRSorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pathogenicity of the enterobacterium Erwinia chrysanthemi (Dickeya dadantii), the causative agent of soft-rot disease in many plants, is a complex process involving several factors whose production is subject to temporal regulation during infection. PecS is a transcriptional regulator that controls production of various virulence factors. Here, we used microarray analysis to define the PecS regulon and demonstrated that PecS notably regulates a wide range of genes that could be linked to pathogenicity and to a group of genes concerned with evading host defenses. Among the targets are the genes encoding plant cell wall-degrading enzymes and secretion systems and the genes involved in flagellar biosynthesis, biosurfactant production, and the oxidative stress response, as well as genes encoding toxin-like factors such as NipE and hemolysin-coregulated proteins. In vitro experiments demonstrated that PecS interacts with the regulatory regions of five new targets: an oxidative stress response gene (ahpC), a biosurfactant synthesis gene (rhlA), and genes encoding exported proteins related to other plant-associated bacterial proteins (nipE, virK, and avrL). The pecS mutant provokes symptoms more rapidly and with more efficiency than the wild-type strain, indicating that PecS plays a critical role in the switch from the asymptomatic phase to the symptomatic phase. Based on this, we propose that the temporal regulation of the different groups of genes required for the asymptomatic phase and the symptomatic phase is, in part, the result of a gradual modulation of PecS activity triggered during infection in response to changes in environmental conditions emerging from the interaction between both partners.

Indexed as

Bacterial ProteinsDickeya chrysanthemiDNA FootprintingElectrophoretic Mobility Shift AssayGene Expression Regulation, BacterialHost-Pathogen InteractionsMagnoliopsidaMutationOligonucleotide Array Sequence AnalysisOxidative StressPromoter Regions, GeneticProtein BindingRepressor ProteinsReverse Transcriptase Polymerase Chain ReactionSequence Analysis, DNABacterial ProteinspecS protein, Erwinia chrysanthemiRepressor Proteins

Identifiers

PMID18790868
PMCPMC2576657
OpenAlexW2107665245

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.