Evidence map›Paper›PMID 25280752›Full record

ArticleMicrobiology (Reading, England)2014

Comparison of genes required for H2O2 resistance in Streptococcus gordonii and Streptococcus sanguinis.

Yifan Xu, Andreas Itzek, Jens Kreth

Open access · greenAbstract readComparative Study
In one paragraph

Article in Microbiology (Reading, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

26 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. [Metabolic reprogramming by glutathione S-transferase enhances environmental adaptation ofHua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2025
    Article
  5. Article
  6. Article
  7. Experimental Inoculation ofInternational journal of molecular sciences · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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  19. Article
  20. Oxidoreductases and Reactive Oxygen Species in Conversion of Lignocellulosic Biomass.Microbiology and molecular biology reviews : MMBR · 2018
    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 at 2 institutions in 2 countries.

Yifan XuDepartment of Surgical Oncology, The First Hospital of China Medical University, Shenyang, PR China.
Andreas ItzekDepartment of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
Jens KrethCollege of Dentistry, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
University of Oklahoma Health Sciences Center · USChina Medical University · CN

Funding

Pyruvate oxidase determines ecological fitness of oral streptococciR01DE021726 · NIDCR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI KRETH, JENS · 2014 to 2018
$1.9M
NIDCR NIH HHS R01 DE021726NIDCR NIH HHS R01DE021726
6 · The paper itself

Abstract

Hydrogen peroxide (H2O2) is produced by several members of the genus Streptococcus mainly through the pyruvate oxidase SpxB under aerobic growth conditions. The acute toxic nature of H2O2 raises the interesting question of how streptococci cope with intrinsically produced H2O2, which subsequently accumulates in the microenvironment and threatens the closely surrounding population. Here, we investigate the H2O2 susceptibility of oral Streptococcus gordonii and Streptococcus sanguinis and elucidate potential mechanisms of how they protect themselves from the deleterious effect of H2O2. Both organisms are considered primary colonizers and occupy the same intraoral niche making them potential targets for H2O2 produced by other species. We demonstrate that S. gordonii produces relatively more H2O2 and has a greater ability for resistance to H2O2 stress. Functional studies show that, unlike in Streptococcus pneumoniae, H2O2 resistance is not dependent on a functional SpxB and confirms the important role of the ferritin-like DNA-binding protein Dps. However, the observed increased H2O2 resistance of S. gordonii over S. sanguinis is likely to be caused by an oxidative stress protection machinery present even under anaerobic conditions, while S. sanguinis requires a longer period of time for adaptation. The ability to produce more H2O2 and be more resistant to H2O2 might aid S. gordonii in the competitive oral biofilm environment, since it is lower in abundance yet manages to survive quite efficiently in the oral biofilm.

Indexed as

Drug ToleranceGenes, BacterialGene Expression Regulation, BacterialHydrogen PeroxideOxidative StressStreptococcus gordoniiStreptococcus pneumoniaeStress, PhysiologicalHydrogen Peroxide

Identifiers

PMID25280752
PMCPMC4252910
OpenAlexW2049799686

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.