Evidence map›Paper›PMID 31439876›Full record

ArticleScientific reports2019

Formation of the Francisella tularensis Biofilm is Affected by Cell Surface Glycosylation, Growth Medium, and a Glucan Exopolysaccharide.

Anna E Champion, Kelly C Freudenberger Catanzaro, Aloka B Bandara, Thomas J Inzana

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

20 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Virulence and resistance adaptation of Streptococcus agalactiae Ib/ST261 infecting bullfrogs in Hainan, China between 2019 and 2023.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Editorial: Reviews in microbial pathogenesis.Frontiers in microbiology · 2025
    Article
  7. Review
  8. Mutation ofMicrobiology (Reading, England) · 2024
    Article
  9. Review
  10. Antibiofilm properties of cathelicidin LL-37: an in-depth review.World journal of microbiology & biotechnology · 2023
    Review
  11. Frontiers in microbiology · 2023
    Article
  12. Review
  13. Article
  14. Genetic Determinants of Antibiotic Resistance inFrontiers in microbiology · 2021
    Review
  15. Article
  16. Review
  17. Article
  18. The Francisella tularensis Polysaccharides: What Is the Real Capsule?Microbiology and molecular biology reviews : MMBR · 2020
    Review
  19. Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Anna E ChampionCenter for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061, USA.
Kelly C Freudenberger CatanzaroCenter for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061, USA.
Aloka B BandaraCenter for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061, USA.
Thomas J InzanaCenter for Molecular Medicine and Infectious Diseases, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061, USA. Thomas.Inzana@liu.edu.ORCID http://orcid.org/0000-0002-5769-5902
Virginia–Maryland College of Veterinary Medicine · USLong Island University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biofilms are matrix-associated communities that enable bacteria to colonise environments unsuitable for free-living bacteria. The facultative intracellular pathogen Francisella tularensis can persist in water, amoebae, and arthropods, as well as within mammalian macrophages. F. tularensis Types A and B form poor biofilms, but F. tularensis mutants lacking lipopolysaccharide O-antigen, O-antigen capsule, and capsule-like complex formed up to 15-fold more biofilm than fully glycosylated cells. The Type B live vaccine strain was also 50% less capable of initiating surface attachment than mutants deficient in O-antigen and capsule-like complex. However, the growth medium of all strains tested also influenced the formation of biofilm, which contained a novel exopolysaccharide consisting of an amylose-like glucan. In addition, the surface polysaccharide composition of the bacterium affected the protein:DNA:polysaccharide composition of the biofilm matrix. In contrast, F. novicida attached to surfaces more efficiently and made a more robust biofilm than Type A or B strains, but loss of O-antigen or capsule-like complex did not significantly affect F. novicida biofilm formation. These results indicated that suppression of surface polysaccharides may promote biofilm formation by F. tularensis Types A and B. Whether biofilm formation enhances survival of F. tularensis in aquatic or other environmental niches has yet to be determined.

Indexed as

Bacterial VaccinesBiofilmsFrancisella tularensisGlycosylationO AntigensBacterial VaccinesO Antigens

Identifiers

PMID31439876
PMCPMC6706388
OpenAlexW2969398420

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.