Cited by 77Escherichia coli research studiesBacterial biofilms and quorum sensingBiochemical and Structural Characterization

Bundle-Forming Pili and EspA Are Involved in Biofilm Formation by Enteropathogenic Escherichia coli

Moreira, Cristiano G., Palmer, Kelli, Whiteley, Marvin, Sircili, Marcelo P., Trabulsi, Luiz R., Castro, Antonio F. P., Sperandio, Vanessa·2006·Journal of Bacteriology

Abstract

Microcolony formation is one of the initial steps in biofilm development, and in enteropathogenic Escherichia coli (EPEC) it is mediated by several adhesins, including the bundle-forming pilus (BFP) and the EspA filament. Here we report that EPEC forms biofilms on plastic under static conditions and a flowthrough continuous culture system. The abilities of several EPEC isogenic mutants to form biofilms were assessed. Adhesins such as BFP and EspA, important in microcolony formation on epithelial cells, are also involved in bacterial aggregation during biofilm formation on abiotic surfaces. Mutants that do not express BFP or EspA form more-diffuse biofilms than does the wild type. We also determined, using gfp transcriptional fusions, that, consistent with the role of these adhesins in biofilms, the genes encoding BFP and EspA are expressed during biofilm formation. Finally, expression of espA is controlled by a quorum-sensing (QS) regulatory mechanism, and the EPEC qseA QS mutant also forms altered biofilms, suggesting that this signaling mechanism plays an important role in EPEC biofilm development. Taken together, these studies allowed us to propose a model of EPEC biofilm formation.

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  • Bfp plays a major role in EPEC microcolony formation, which leads to biofilm formation.

    “Bfp plays a major role in EPEC microcolony formation, which in turn leads to biofilm formation [123].”

    From Bacterial autoaggregation (2018) · cites this paper as [123]

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  1. [64]64. Sambrook, J., E. F. Fritsch, and T. Maniatis. 1989. Molecular cloning: a laboratory manual, 2nd ed. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, N.Y.

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Authors
Moreira, C. G., Palmer, K., Whiteley, M., Sircili, M. P., Trabulsi, L. R., Castro, A. F. P., & Sperandio, V.
Affiliations
  • Universidade de São Paulo (BR)
  • University of Oklahoma Health Sciences Center (US)
  • Instituto Butantan, Sao Paulo, Brazil 05503-900
  • Dept. Microbiologia, Universidade de Sao Paulo, Sao Paulo, Brazil 05508-900
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
Sperandio, Vanessa
Venue
Journal of Bacteriology
Published
2006-06
Volume
188
Issue
11
Pages
3952-3961
ISSN
  • 0021-9193 (ISSN-L)
  • 1098-5530
OpenAlex
W2134912815
Cited by
77
References
88
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2022: 1 · 2020: 2 · 2019: 4 · 2018: 4 · 2017: 6 · 2016: 6 · 2015: 8 · 2014: 5 · 2013: 5 · 2012: 6
FWCI
3.19
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Bacteriology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • National Institutes of Health (AI053067)
  • National Institute of Allergy and Infectious Diseases (R01AI053067, AI-054468, R21AI054468, AI 053067, R37AI053067)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
Keywords
enteropathogenic Escherichia coli, biofilm formation, bundle-forming pilus, adhesins, microcolony formation, bacterial aggregation, abiotic surfaces, quorum sensing, gene expression regulation
MeSH terms
Escherichia coli, Genotype, Kinetics, Fimbriae, Bacterial, Recombinant Proteins, Transcription, Genetic, Signal Transduction, Mutagenesis, Biofilms, Escherichia coli Proteins

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