Evidence map›Paper›PMID 24385934›Full record

ArticlePLoS genetics2013

Molecular characterization of host-specific biofilm formation in a vertebrate gut symbiont.

Steven A Frese, Donald A Mackenzie, Daniel A Peterson, Robert Schmaltz, Teresa Fangman, You Zhou, Chaomei Zhang, Andrew K Benson, Liz A Cody, Francis Mulholland and 2 more

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2013. 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
4.8field-weighted citation impact, top 4% 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, 156 citations in OpenAlex.

  1. Review
  2. Review
  3. Proposal ofInternational journal of systematic and evolutionary microbiology · 2026
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  12. Review
  13. Genomic diversity and functional adaptation ofFrontiers in microbiology · 2025
    Article
  14. Article
  15. Article
  16. Review
  17. MicroencapsulatedAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2024
    Article
  18. Article
  19. Review
  20. The human intestinal bacteriumMicrobiome research reports · 2024
    Article

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

12 authors at 3 institutions in 2 countries.

Steven A FreseDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
Donald A MackenzieInstitute of Food Research, Norwich Research Park, Norwich, United Kingdom.
Daniel A PetersonJohns Hopkins University School of Medicine, Department of Pathology, Baltimore, Maryland, United States of America.
Robert SchmaltzDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
Teresa FangmanCenter for Biotechnology, University of Nebraska, Lincoln, Nebraska, United States of America.
You ZhouCenter for Biotechnology, University of Nebraska, Lincoln, Nebraska, United States of America.
Chaomei ZhangDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
Andrew K BensonDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
Liz A CodyDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
Francis MulhollandInstitute of Food Research, Norwich Research Park, Norwich, United Kingdom.
Nathalie JugeInstitute of Food Research, Norwich Research Park, Norwich, United Kingdom.
Jens WalterDepartment of Food Science and Technology, University of Nebraska, Lincoln, Nebraska, United States of America.
University of Nebraska–Lincoln · USQuadram Institute · GBJohns Hopkins Medicine · US

Funding

Biotechnology and Biological Sciences Research Council BB/J004529/1Biotechnology and Biological Sciences Research Council BB/K019554/1Biotechnology and Biological Sciences Research Council BBS/E/F/00044452
6 · The paper itself

Abstract

Although vertebrates harbor bacterial communities in their gastrointestinal tract whose composition is host-specific, little is known about the mechanisms by which bacterial lineages become selected. The goal of this study was to characterize the ecological processes that mediate host-specificity of the vertebrate gut symbiont Lactobacillus reuteri, and to systematically identify the bacterial factors that are involved. Experiments with monoassociated mice revealed that the ability of L. reuteri to form epithelial biofilms in the mouse forestomach is strictly dependent on the strain's host origin. To unravel the molecular basis for this host-specific biofilm formation, we applied a combination of transcriptome analysis and comparative genomics and identified eleven genes of L. reuteri 100-23 that were predicted to play a role. We then determined expression and importance of these genes during in vivo biofilm formation in monoassociated mice. This analysis revealed that six of the genes were upregulated in vivo, and that genes encoding for proteins involved in epithelial adherence, specialized protein transport, cell aggregation, environmental sensing, and cell lysis contributed to biofilm formation. Inactivation of a serine-rich surface adhesin with a devoted transport system (the SecA2-SecY2 pathway) completely abrogated biofilm formation, indicating that initial adhesion represented the most significant step in biofilm formation, likely conferring host specificity. In summary, this study established that the epithelial selection of bacterial symbionts in the vertebrate gut can be both specific and highly efficient, resulting in biofilms that are exclusively formed by the coevolved strains, and it allowed insight into the bacterial effectors of this process.

Indexed as

Adhesins, BacterialAnimalsBiofilmsGastrointestinal TractGene Expression Regulation, BacterialGenomicsHost SpecificityLimosilactobacillus reuteriMiceSequence Analysis, DNASymbiosisVertebratesAdhesins, Bacterial

Identifiers

PMID24385934
PMCPMC3873254
OpenAlexW2087435260

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.