Evidence map›Paper›PMID 19429556›Full record

ArticleApplied and environmental microbiology2009

Staphylococcus aureus virulence expression is impaired by Lactococcus lactis in mixed cultures.

Sergine Even, Cathy Charlier, Sébastien Nouaille, Nouri L Ben Zakour, Marina Cretenet, Fabien J Cousin, Michel Gautier, Muriel Cocaign-Bousquet, Pascal Loubière, Yves Le Loir

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 71 citations in OpenAlex.

  1. Virulence · 2026
    Article
  2. Article
  3. Acute toxicity and anti-enterotoxigenic activity of pigment extracted from Micrococcus roseus.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  4. Article
  5. Lactococcus lactis, a bacterium with probiotic functions and pathogenicity.World journal of microbiology & biotechnology · 2023
    Review
  6. Review
  7. Article
  8. Inhibitory effect of probiotic yeastIranian journal of microbiology · 2019
    Article
  9. The Continuing Threat of Methicillin-ResistantAntibiotics (Basel, Switzerland) · 2019
    Review
  10. Review
  11. Anti-Staphylococcal Enterotoxinogenesis ofFood technology and biotechnology · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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

10 authors at 4 institutions in 1 country.

Sergine EvenINRA, UMR STLO, Rennes, France. sergine.even@rennes.inra.fr
Cathy Charlier
Sébastien Nouaille
Nouri L Ben Zakour
Marina Cretenet
Fabien J Cousin
Michel Gautier
Muriel Cocaign-Bousquet
Pascal Loubière
Yves Le Loir
Institut Agro Rennes-Angers · FRLaboratoire Science & technologie du Lait & de l'œuf · FRCentre National de la Recherche Scientifique · FRUniversité Toulouse III - Paul Sabatier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Staphylococcus aureus is responsible for numerous food poisonings due to the production of enterotoxins by strains contaminating foodstuffs, especially dairy products. Several parameters, including interaction with antagonistic flora such as Lactococcus lactis, a lactic acid bacterium widely used in the dairy industry, can modulate S. aureus proliferation and virulence expression. We developed a dedicated S. aureus microarray to investigate the effect of L. lactis on staphylococcal gene expression in mixed cultures. This microarray was used to establish the transcriptomic profile of S. aureus in mixed cultures with L. lactis in a chemically defined medium held at a constant pH (6.6). Under these conditions, L. lactis hardly affected S. aureus growth. The expression of most genes involved in the cellular machinery, carbohydrate and nitrogen metabolism, and stress responses was only slightly modulated: a short time lag in mixed compared to pure cultures was observed. Interestingly, the induction of several virulence factors and regulators, including the agr locus, sarA, and some enterotoxins, was strongly affected. This work clearly underlines the complexity of L. lactis antagonistic potential for S. aureus and yields promising leads for investigations into nonantibiotic biocontrol of this major pathogen.

Indexed as

AntibiosisBacterial ProteinsCoculture TechniquesCulture MediaGene Expression ProfilingLactococcus lactisOligonucleotide Array Sequence AnalysisStaphylococcus aureusVirulence FactorsBacterial ProteinsCulture MediaVirulence Factors

Identifiers

PMID19429556
PMCPMC2704850
OpenAlexW2061869539

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.