Evidence map›Paper›PMID 20041198›Full record

ArticlePLoS genetics2009

The Bifidobacterium dentium Bd1 genome sequence reflects its genetic adaptation to the human oral cavity.

Marco Ventura, Francesca Turroni, Aldert Zomer, Elena Foroni, Vanessa Giubellini, Francesca Bottacini, Carlos Canchaya, Marcus J Claesson, Fei He, Maria Mantzourani and 13 more

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
11.7field-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

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 177 citations in OpenAlex.

  1. Pooled it
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  9. Gene-trait matching amongFrontiers in microbiology · 2025
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  10. The Oral Microbial Ecosystem in Age-Related Xerostomia: A Critical Review.International journal of molecular sciences · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Cryptic Oral Microbiota: What Is Its Role as Obstructive Sleep Apnea-Related Periodontal Pathogens?International journal of environmental research and public health · 2023
    Article
  18. Article
  19. Study of the binding of ΔFN3.1 fragments of theMicrobiome research reports · 2023
    Article
  20. Stress Response in Bifidobacteria.Microbiology and molecular biology reviews : MMBR · 2022
    Review

31 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

23 authors at 8 institutions in 7 countries.

Marco VenturaLaboratory of Probiogenomics, Department of Genetics, Biology of Microorganisms, Anthropology, and Evolution, University of Parma, Parma, Italy. marco.ventura@unipr.it
Francesca Turroni
Aldert Zomer
Elena Foroni
Vanessa Giubellini
Francesca Bottacini
Carlos Canchaya
Marcus J Claesson
Fei He
Maria Mantzourani
Laura Mulas
Alberto Ferrarini
Beile Gao
Massimo Delledonne
Bernard Henrissat
Pedro Coutinho
Marco Oggioni
Radhey S Gupta
Ziding Zhang
David Beighton
Gerald F Fitzgerald
Paul W O'Toole
Douwe van Sinderen
University of Parma · ITNational University of Ireland · IEArchitecture et Fonction des Macromolécules Biologiques · FRChina Agricultural University · CNKing's College London · GBMcMaster University · CAUniversity of Siena · ITUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bifidobacteria, one of the relatively dominant components of the human intestinal microbiota, are considered one of the key groups of beneficial intestinal bacteria (probiotic bacteria). However, in addition to health-promoting taxa, the genus Bifidobacterium also includes Bifidobacterium dentium, an opportunistic cariogenic pathogen. The genetic basis for the ability of B. dentium to survive in the oral cavity and contribute to caries development is not understood. The genome of B. dentium Bd1, a strain isolated from dental caries, was sequenced to completion to uncover a single circular 2,636,368 base pair chromosome with 2,143 predicted open reading frames. Annotation of the genome sequence revealed multiple ways in which B. dentium has adapted to the oral environment through specialized nutrient acquisition, defences against antimicrobials, and gene products that increase fitness and competitiveness within the oral niche. B. dentium Bd1 was shown to metabolize a wide variety of carbohydrates, consistent with genome-based predictions, while colonization and persistence factors implicated in tissue adhesion, acid tolerance, and the metabolism of human saliva-derived compounds were also identified. Global transcriptome analysis demonstrated that many of the genes encoding these predicted traits are highly expressed under relevant physiological conditions. This is the first report to identify, through various genomic approaches, specific genetic adaptations of a Bifidobacterium taxon, Bifidobacterium dentium Bd1, to a lifestyle as a cariogenic microorganism in the oral cavity. In silico analysis and comparative genomic hybridization experiments clearly reveal a high level of genome conservation among various B. dentium strains. The data indicate that the genome of this opportunistic cariogen has evolved through a very limited number of horizontal gene acquisition events, highlighting the narrow boundaries that separate commensals from opportunistic pathogens.

Indexed as

Adaptation, PhysiologicalBase SequenceBifidobacteriumBiological TransportFimbriae, BacterialGene Expression ProfilingGene Expression Regulation, BacterialGenes, BacterialGenetic LociGenetic VariationGenome, BacterialHumansInterspersed Repetitive SequencesMouthOligonucleotide Array Sequence AnalysisSequence AlignmentVirulence Factors

Identifiers

PMID20041198
PMCPMC2788695
OpenAlexW1995230120

What OpenQuestion holds

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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.