Evidence map›Paper›PMID 24743836›Full record

ArticlePLoS pathogens2014

Kind discrimination and competitive exclusion mediated by contact-dependent growth inhibition systems shape biofilm community structure.

Melissa S Anderson, Erin C Garcia, Peggy A Cotter

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

53 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
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  5. The Type VII Secretion System ofAnnual review of microbiology · 2021
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  10. Article
  11. Contact-Dependent Growth Inhibition in Bacteria: Do Not Get Too Close!International journal of molecular sciences · 2020
    Review
  12. Bacterial Community Interactions During Chronic Respiratory Disease.Frontiers in cellular and infection microbiology · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  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

3 authors at 1 institution in 1 country.

Melissa S AndersonDepartment of Microbiology & Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Erin C GarciaDepartment of Microbiology & Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Peggy A CotterDepartment of Microbiology & Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
University of North Carolina at Chapel Hill · US

Funding

Vaccines and Diagnostics TrialsU54AI065359 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI BARBOUR, ALAN G. · 2005 to 2013
$88.8M
Contact Dependent Growth Inhibition in Burkholderia pseudomalleiR21AI093154 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI COTTER, PEGGY A · 2011 to 2012
$407k
Inter-Bacterial Competition Systems in Burkholderia pseudomalleiF32AI096728 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI GARCIA, ERIN C · 2011 to 2013
$155k
NIAID NIH HHS F32 AI096728NIAID NIH HHS F32 AI096728-01NIAID NIH HHS R21 AI093154NIAID NIH HHS U54 AI065359
6 · The paper itself

Abstract

Contact-Dependent Growth Inhibition (CDI) is a phenomenon in which bacteria use the toxic C-terminus of a large exoprotein (called BcpA in Burkholderia species) to inhibit the growth of neighboring bacteria upon cell-cell contact. CDI systems are present in a wide range of Gram-negative proteobacteria and a hallmark feature is polymorphism amongst the exoprotein C-termini (BcpA-CT in Burkholderia) and amongst the small immunity proteins (BcpI) that protect against CDI in an allele-specific manner. In addition to CDI, the BcpAIOB proteins of Burkholderia thailandensis mediate biofilm formation, and they do so independent of BcpA-mediated interbacterial competition, suggesting a cooperative role for CDI system proteins in this process. CDI has previously only been demonstrated between CDI+ and CDI- bacteria, leaving the roles of CDI system-mediated interbacterial competition and of CDI system diversity in nature unknown. We constructed B. thailandensis strains that differed only in the BcpA-CT and BcpI proteins they produced. When co-cultured on agar, these strains each participated in CDI and the outcome of the competition depended on both CDI system efficiency and relative bacterial numbers initially. Strains also participated in CDI during biofilm development, resulting in pillar structures that were composed of only a single BcpA-CT/BcpI type. Moreover, a strain producing BcpA-CT/BcpI proteins of one type was prevented from joining a pre-established biofilm community composed of bacteria producing BcpA-CT/BcpI proteins of a different type, unless it also produced the BcpI protein of the established strain. Bacteria can therefore use CDI systems for kind recognition and competitive exclusion of 'non-self' bacteria from a pre-established biofilm. Our data indicate that CDI systems function in both cooperative and competitive behaviors to build microbial communities that are composed of only bacteria that are related via their CDI system alleles.

Indexed as

BiofilmsBurkholderiaContact InhibitionEscherichia coliMicrobial Interactions

Identifiers

PMID24743836
PMCPMC3990724
OpenAlexW2060051187

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.