Evidence map›Paper›PMID 25648083›Full record

ArticleBMC microbiology2015

Impact of the exopolysaccharide layer on biofilms, adhesion and resistance to stress in Lactobacillus johnsonii FI9785.

Enes Dertli, Melinda J Mayer, Arjan Narbad

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
24.0field-weighted citation impact, top 1% 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

86 citing papers in PubMed, 199 citations in OpenAlex.

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  17. 3-Hydroxybenzoic acid inhibits the virulence attributes and disrupts biofilm production in clinical isolates of Acinetobacter baumannii.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
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26 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 2 countries.

Enes DertliGut Health and Food Safety Institute Strategic Programme, Institute of Food Research, Colney, Norwich, NR4 7UA, UK. edertli@bayburt.edu.tr.
Melinda J MayerGut Health and Food Safety Institute Strategic Programme, Institute of Food Research, Colney, Norwich, NR4 7UA, UK. melinda.mayer@ifr.ac.uk.
Arjan NarbadGut Health and Food Safety Institute Strategic Programme, Institute of Food Research, Colney, Norwich, NR4 7UA, UK. arjan.narbad@ifr.ac.uk.
Quadram Institute · GBBayburt University · TR

Funding

Biotechnology and Biological Sciences Research Council BB/J004529/1Biotechnology and Biological Sciences Research Council BBS/E/F/00044453
6 · The paper itself

Abstract

backgroundThe bacterial cell surface is a crucial factor in cell-cell and cell-host interactions. Lactobacillus johnsonii FI9785 produces an exopolysaccharide (EPS) layer whose quantity and composition is altered in mutants that harbour genetic changes in their eps gene clusters. We have assessed the effect of changes in EPS production on cell surface characteristics that may affect the ability of L. johnsonii to colonise the poultry host and exclude pathogens.

resultsAnalysis of physicochemical cell surface characteristics reflected by Zeta potential and adhesion to hexadecane showed that an increase in EPS gave a less negative, more hydrophilic surface and reduced autoaggregation. Autoaggregation was significantly higher in mutants that have reduced EPS, indicating that EPS can mask surface structures responsible for cell-cell interactions. EPS also affected biofilm formation, but here the quantity of EPS produced was not the only determinant. A reduction in EPS production increased bacterial adhesion to chicken gut explants, but made the bacteria less able to survive some stresses.

conclusionsThis study showed that manipulation of EPS production in L. johnsonii FI9785 can affect properties which may improve its performance as a competitive exclusion agent, but that positive changes in adhesion may be compromised by a reduction in the ability to survive stress.

Indexed as

Bacterial AdhesionStress, PhysiologicalAnimalsBiofilmsChickensIntestinesLactobacillusMicrobial ViabilityPolysaccharides, BacterialPolysaccharides, Bacterial

Identifiers

PMID25648083
PMCPMC4326364
OpenAlexW1978270949

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.