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Gram-negative bacteria can also form pellicles.

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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https://hal-amu.archives-ouvertes.fr/hal-01494588
Contributor : Laure Azzopardi <>
Submitted on : Thursday, March 23, 2017 - 4:32:55 PM
Last modification on : Thursday, January 25, 2018 - 6:26:02 PM

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Joshua Armitano, Vincent Méjean, Cécile Jourlin-Castelli. Gram-negative bacteria can also form pellicles.. Environmental Microbiology Reports, Wiley, 2014, 6 Minireview (6), pp.534-44. ⟨10.1111/1758-2229.12171⟩. ⟨hal-01494588⟩

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