Evidence map›Paper›PMID 18665275›Full record

ArticlePloS one2008

SdiA, an N-acylhomoserine lactone receptor, becomes active during the transit of Salmonella enterica through the gastrointestinal tract of turtles.

Jenee N Smith, Jessica L Dyszel, Jitesh A Soares, Craig D Ellermeier, Craig Altier, Sara D Lawhon, L Garry Adams, Vjollca Konjufca, Roy Curtiss, James M Slauch and 1 more

Abstract read
In one paragraph

Article in PloS one, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing 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

46 citing papers in PubMed.

  1. Article
  2. Review
  3. Regulatory effects on virulence and phage susceptibility revealed byFrontiers in cellular and infection microbiology · 2025
    Article
  4. Article
  5. From intestine to beyond:Open biology · 2024
    Article
  6. Article
  7. Silencing ofMicroorganisms · 2022
    Article
  8. Article
  9. Alteration ofMicroorganisms · 2021
    Article
  10. Article
  11. Article
  12. AIMS microbiology · 2021
    Review
  13. Article
  14. Article
  15. SdiA Improves the Acid Tolerance ofFrontiers in microbiology · 2020
    Article
  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

11 authors.

Jenee N SmithDepartment of Microbiology, The Ohio State University, Columbus, Ohio, United States of America.
Jessica L Dyszel
Jitesh A Soares
Craig D Ellermeier
Craig Altier
Sara D Lawhon
L Garry Adams
Vjollca Konjufca
Roy Curtiss
James M Slauch
Brian M M Ahmer

Funding

Salmonella polymicrobial interactionsR01AI073971 · NIAID · OHIO STATE UNIVERSITY · PI AHMER, BRIAN M · 2008 to 2012
$2.8M
MOLECULAR GENETIC ANALYSIS OF SALMONELLA PATHOGENICITYR01AI024533 · NIAID · WASHINGTON UNIVERSITY · PI CURTISS, ROY · 1987 to 2006
$2.0M
Functional Analysis of Cu/Zn Superoxide DismutaseR01AI063230 · NIAID · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI SLAUCH, JAMES M. · 2005 to 2009
$1.7M
Detection of Mixed Microbial Communities by SalmonellaR01AI050002 · NIAID · OHIO STATE UNIVERSITY · PI AHMER, BRIAN M · 2001 to 2004
$862k
Impact of ileal content on S typhimurium pathogenesisK08AI060933 · NIAID · TEXAS A&M UNIVERSITY SYSTEM · PI LAWHON, SARA D. · 2004 to 2006
$311k
NIAID NIH HHS 5K08AI060933-02NIAID NIH HHS AI0500002NIAID NIH HHS AI073971NIAID NIH HHS AI24533NIAID NIH HHS AI63230NIAID NIH HHS K08 AI060933NIAID NIH HHS R01 AI024533NIAID NIH HHS R01 AI050002NIAID NIH HHS R01 AI063230NIAID NIH HHS R01 AI073971
6 · The paper itself

Abstract

backgroundLuxR-type transcription factors are typically used by bacteria to determine the population density of their own species by detecting N-acylhomoserine lactones (AHLs). However, while Escherichia and Salmonella encode a LuxR-type AHL receptor, SdiA, they cannot synthesize AHLs. In vitro, it is known that SdiA can detect AHLs produced by other bacterial species. METHODOLOGY/PRINCIPAL

findingsIn this report, we tested the hypothesis that SdiA detects the AHL-production of other bacterial species within the animal host. SdiA did not detect AHLs during the transit of Salmonella through the gastrointestinal tract of a guinea pig, a rabbit, a cow, 5 mice, 6 pigs, or 12 chickens. However, SdiA was activated during the transit of Salmonella through turtles. All turtles examined were colonized by the AHL-producing species Aeromonas hydrophila. CONCLUSIONS/SIGNIFICANCE: We conclude that the normal gastrointestinal microbiota of most animal species do not produce AHLs of the correct type, in an appropriate location, or in sufficient quantities to activate SdiA. However, the results obtained with turtles represent the first demonstration of SdiA activity in animals.

Indexed as

AeromonasAnimalsBacterial ProteinsCattleChickensFemaleGastrointestinal TractGuinea PigsLactonesMiceMice, Inbred CBAModels, BiologicalRabbitsSalmonella entericaTrans-ActivatorsTurtlesBacterial ProteinsLactonesSdiA protein, bacteriaTrans-Activators

Identifiers

PMID18665275
PMCPMC2475663

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Registered trials

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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.