Gram-negative bacteria can also form pellicles

Environmental Microbiology Reports
Joshua ArmitanoCécile Jourlin-Castelli

Abstract

There is a growing interest in the bacterial pellicle, a biofilm floating at the air-liquid interface. Pellicles have been well studied in the Gram-positive bacterium Bacillus subtilis, but far less in Gram-negative bacteria, where pellicle studies have mostly focused on matrix components rather than on the regulatory cascades involved. Several Gram-negative bacteria, including pathogenic bacteria, have been shown to be able to form a pellicle under static conditions. Here, we summarize the growing body of knowledge about pellicle formation in Gram-negative bacteria, especially about the components of the pellicle matrix. We also propose that the pellicle is a specific biofilm, and that its formation involves particular processes. Since this lifestyle concerns a growing number of bacteria, its properties undoubtedly deserve further investigation.

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Citations

Nov 10, 2015·Journal of Food Science·Yong-Ji LiuXiao Liu
Jul 1, 2015·Journal of Molecular Biology·Theresa HölscherÁkos T Kovács
Nov 2, 2016·Molecular & Cellular Proteomics : MCP·Takfarinas KentacheJulie Hardouin
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Mar 7, 2021·Microorganisms·Zaira Heredia-PonceJosé Antonio Gutiérrez-Barranquero
Aug 4, 2021·Annual Review of Microbiology·Diego O Serra, Regine Hengge

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