Cited by 1,691Bacterial biofilms and quorum sensingBacterial Genetics and BiotechnologyMicrobial Fuel Cells and Bioremediation

Pseudomonas aeruginosa Displays Multiple Phenotypes during Development as a Biofilm

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Sauer, Karin, Camper, Anne K., Ehrlich, Garth D., Costerton, J. William, Davies, David G.·2002·Journal of Bacteriology

Abstract

Complementary approaches were employed to characterize transitional episodes in Pseudomonas aeruginosa biofilm development using direct observation and whole-cell protein analysis. Microscopy and in situ reporter gene analysis were used to directly observe changes in biofilm physiology and to act as signposts to standardize protein collection for two-dimensional electrophoretic analysis and protein identification in chemostat and continuous-culture biofilm-grown populations. Using these approaches, we characterized five stages of biofilm development: (i) reversible attachment, (ii) irreversible attachment, (iii) maturation-1, (iv) maturation-2, and (v) dispersion. Biofilm cells were shown to change regulation of motility, alginate production, and quorum sensing during the process of development. The average difference in detectable protein regulation between each of the five stages of development was 35% (approximately 525 proteins). When planktonic cells were compared with maturation-2 stage biofilm cells, more than 800 proteins were shown to have a sixfold or greater change in expression level (over 50% of the proteome). This difference was higher than when planktonic P. aeruginosa were compared with planktonic cultures of Pseudomonas putida . Las quorum sensing was shown to play no role in early biofilm development but was important in later stages. Biofilm cells in the dispersion stage were more similar to planktonic bacteria than to maturation-2 stage bacteria. These results demonstrate that P. aeruginosa displays multiple phenotypes during biofilm development and that knowledge of stage-specific physiology may be important in detecting and controlling biofilm growth.

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  • If biofilms occur, these microbes change their metabolism and a new ecology is set up with a modified microbiome.

    “If this occurs, these microbes change their metabolism11 and a new ecology is set up with a modified microbiome.12,13”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [11]

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  1. [6]Brõzel, V. S., G. M. Strydom, and T. E. E. Cloete. 1995. A method for the study of de novo protein synthesis in Pseudomonas aeruginosa after attachment. Biofouling 8:195-210. [Google Scholar]
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Authors
Sauer, K., Camper, A. K., Ehrlich, G. D., Costerton, J. W., & Davies, D. G.
Affiliations
  • Montana State University (US)
  • Allegheny-Singer Research Institute (US)
  • Binghamton University (US)
Venue
Journal of Bacteriology
Published
2002-02-15
Volume
184
Issue
4
Pages
1140-1154
ISSN
  • 0021-9193 (ISSN-L)
  • 1098-5530
OpenAlex
W2122608498
Cited by
1,691
References
55
Citations by year
2026: 32 · 2025: 52 · 2024: 47 · 2023: 71 · 2022: 56 · 2021: 60 · 2020: 74 · 2019: 77 · 2018: 66 · 2017: 79 · 2016: 85 · 2015: 91 · 2014: 112 · 2013: 93 · 2012: 70
FWCI
20.74
Type
journal article
Language
en
Open access
Locations
  • Journal of Bacteriology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Montana State University ScholarWorks (Montana State University) (submittedVersion)
Funders
  • National Science Foundation
  • Montana State University
  • Deutsche Forschungsgemeinschaft
  • National Institutes of Health
  • Binghamton University
  • National Institute on Deafness and Other Communication Disorders (R01DC002148, R01DC004173, DC04173-01, DC-02148)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
Pseudomonas aeruginosa, biofilm growth, biofilm maturation, biofilm dispersal, motility regulation, alginate production, quorum sensing, proteome, stage-specific gene expression, planktonic versus biofilm cells, biofilm physiology
MeSH terms
Amino Acids, Bacterial Proteins, Phenotype, Pseudomonas aeruginosa, Electrophoresis, Gel, Two-Dimensional, Oxidative Stress, Biofilms, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Proteome

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