The biofilm life cycle: expanding the conceptual model of biofilm formation

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Date

2022-10

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Publisher

Springer Science and Business Media LLC

Abstract

Bacterial biofilms are often defined as communities of surface-attached bacteria and are typically depicted with a classic mushroom-shaped structure characteristic of Pseudomonas aeruginosa. However, it has become evident that this is not how all biofilms develop, especially in vivo, in clinical and industrial settings, and in the environment, where biofilms often are observed as non-surface-attached aggregates. In this Review, we describe the origin of the current five-step biofilm development model and why it fails to capture many aspects of bacterial biofilm physiology. We aim to present a simplistic developmental model for biofilm formation that is flexible enough to include all the diverse scenarios and microenvironments where biofilms are formed. With this new expanded, inclusive model, we hereby introduce a common platform for developing an understanding of biofilms and anti-biofilm strategies that can be tailored to the microenvironment under investigation.

Description

This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41579-022-00767-0

Keywords

biofilm life cycle, conceptual model of biofilm

Citation

Sauer, K., Stoodley, P., Goeres, D.M. et al. The biofilm life cycle: expanding the conceptual model of biofilm formation. Nat Rev Microbiol 20, 608–620 (2022). https://doi.org/10.1038/s41579-022-00767-0
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