Evidence map›Paper›PMID 19648379›Full record

ArticleApplied and environmental microbiology2009

Competition of Listeria monocytogenes serotype 1/2a and 4b strains in mixed-culture biofilms.

Youwen Pan, Frederick Breidt, Sophia Kathariou

Abstract 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 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed.

  1. Evidence-Based Intervention Framework Proposal forFoods (Basel, Switzerland) · 2026
    Article
  2. Pathogens (Basel, Switzerland) · 2026
    Article
  3. A whole genome-based characterization ofFrontiers in microbiology · 2026
    Article
  4. Article
  5. Surveillance and genetic characterization ofFrontiers in microbiology · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Photoactivated Carbon Dots for Inactivation of Foodborne PathogensApplied and environmental microbiology · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Stress Response ofFrontiers in microbiology · 2020
    Article
  15. Article
  16. Article
  17. EFSA journal. European Food Safety Authority · 2018
    Article
  18. Novel Cadmium Resistance Determinant in Listeria monocytogenes.Applied and environmental microbiology · 2017
    Article
  19. Article
  20. Review
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

3 authors.

Youwen PanUSDA-ARS, Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, Raleigh, NC 27695-7624, USA.
Frederick Breidt
Sophia Kathariou

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The majority of Listeria monocytogenes isolates recovered from foods and the environment are strains of serogroup 1/2, especially serotypes 1/2a and 1/2b. However, serotype 4b strains cause the majority of human listeriosis outbreaks. Our investigation of L. monocytogenes biofilms used a simulated food-processing system that consisted of repeated cycles of growth, sanitation treatment, and starvation to determine the competitive fitness of strains of serotypes 1/2a and 4b in pure and mixed-culture biofilms. Selective enumeration of strains of a certain serotype in mixed-culture biofilms on stainless steel coupons was accomplished by using serotype-specific quantitative PCR and propidium monoazide treatment to prevent amplification of extracellular DNA or DNA from dead cells. The results showed that the serotype 1/2a strains tested were generally more efficient at forming biofilms and predominated in the mixed-culture biofilms. The growth and survival of strains of one serotype were not inhibited by strains of the other serotype in mixed-culture biofilms. However, we found that a cocktail of serotype 4b strains survived and grew significantly better in mixed-culture biofilms containing a specific strain of serotype 1/2a (strain SK1387), with final cell densities averaging 0.5 log(10) CFU/cm(2) higher than without the serotype 1/2a strain. The methodology used in this study contributed to our understanding of how environmental stresses and microbial competition influence the survival and growth of L. monocytogenes in pure and mixed-culture biofilms.

Indexed as

AntibiosisEnvironmental MicrobiologyBiofilmsColony Count, MicrobialHumansListeria monocytogenesMicrobial ViabilityPolymerase Chain ReactionStainless SteelStainless Steel

Identifiers

PMID19648379
PMCPMC2747858

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.