Evidence map›Paper›PMID 18212071›Full record

ArticleInfection and immunity2008

Contribution of type IV pili to the virulence of Aeromonas salmonicida subsp. salmonicida in Atlantic salmon (Salmo salar L.).

Jessica M Boyd, Andrew Dacanay, Leah C Knickle, Ahmed Touhami, Laura L Brown, Manfred H Jericho, Stewart C Johnson, Michael Reith

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

36 citing papers in PubMed, 84 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Genomic characterization ofMicrobial genomics · 2024
    Article
  5. Probable Role of Type IV Pili ofPathogens (Basel, Switzerland) · 2024
    Article
  6. Tad pili contribute to the virulence and biofilm formation of virulentFrontiers in cellular and infection microbiology · 2024
    Article
  7. Two colistin resistance-producingFrontiers in microbiology · 2024
    Article
  8. First Isolation and Identification ofAnimals : an open access journal from MDPI · 2023
    Article
  9. Whole genome sequence analysis ofFrontiers in microbiology · 2023
    Article
  10. Atlantic Salmon Mucins InhibitInternational journal of molecular sciences · 2022
    Article
  11. Article
  12. Protein-Based Vaccine Protect AgainstFrontiers in immunology · 2021
    Article
  13. Article
  14. Virulence characteristics and antimicrobial resistance of Aeromonas veronii biovar sobria 312M, a clinical isolate.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2020
    Article
  15. Article
  16. A First Report ofFrontiers in veterinary science · 2020
    Article
  17. Article
  18. Article
  19. The Social Life ofFrontiers in microbiology · 2017
    Review
  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 2 institutions in 1 country.

Jessica M BoydNational Research Council of Canada Institute for Marine Biosciences, 1411 Oxford St., Halifax, Nova Scotia, Canada B3H 3Z1. jessica.boyd@nrc-cnrc.gc.ca
Andrew Dacanay
Leah C Knickle
Ahmed Touhami
Laura L Brown
Manfred H Jericho
Stewart C Johnson
Michael Reith
Institute for Marine Biosciences · CADalhousie University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aeromonas salmonicida subsp. salmonicida, a bacterial pathogen of Atlantic salmon, has no visible pili, yet its genome contains genes for three type IV pilus systems. One system, Tap, is similar to the Pseudomonas aeruginosa Pil system, and a second, Flp, resembles the Actinobacillus actinomycetemcomitans Flp pilus, while the third has homology to the mannose-sensitive hemagglutinin pilus of Vibrio cholerae. The latter system is likely nonfunctional since eight genes, including the gene encoding the main pilin subunit, are deleted compared with the orthologous V. cholerae locus. The first two systems were characterized to investigate their expression and role in pathogenesis. The pili of A. salmonicida subsp. salmonicida were imaged using atomic force microscopy and Tap- and Flp-overexpressing strains. The Tap pili appeared to be polar, while the Flp pili appeared to be peritrichous. Strains deficient in tap and/or flp were used in live bacterial challenges of Atlantic salmon, which showed that the Tap pilus made a moderate contribution to virulence, while the Flp pilus made little or no contribution. Delivery of the tap mutant by immersion resulted in reduced cumulative morbidity compared with the cumulative morbidity observed with the wild-type strain; however, delivery by intraperitoneal injection resulted in cumulative morbidity similar to that of the wild type. Unlike the pili of other piliated bacterial pathogens, A. salmonicida subsp. salmonicida type IV pili are not absolutely required for virulence in Atlantic salmon. Significant differences in the behavior of the two mutant strains indicated that the two pilus systems are not redundant.

Indexed as

Aeromonas salmonicidaAnimalsBacterial AdhesionFimbriae, BacterialFimbriae ProteinsFish DiseasesMutationSalmo salarVirulenceFimbriae Proteins

Identifiers

PMID18212071
PMCPMC2292863
OpenAlexW2046103870

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.