Bacterial exploration of solid/liquid interfaces: developing platforms to control the physico-chemical microenvironment
Letrou, M.; Chagua Encarnacion, K.; Mathias, R.; Carrasco Salas, Y.; Gomez Ho, S.; Murillo Vilella, E.; Bureau, L.; Lecuyer, S.; Debarre, D.
Show abstract
Bacterial long-term contamination of surfaces is a promiscuous phenomenon often linked to harmful processes. Early bacterial exploration of interfaces, governed by adhesion and individual motility, is a known determinant of the subsequent development and persistence of bacterial colonies. However, the mechanisms by which bacteria integrate various environmental signals at these interfaces and modulate their behavior in response remain poorly understood. Here we present methods for designing precisely controlled microenvironments that enable the manipulation of both physical and chemical properties of solid-liquid interfaces, and also permit in situ monitoring of bacteria at these interfaces within microfluidic flow cells. Our aim is to provide an innovative toolbox for the interdisciplinary research community focused on elucidating the complex processes underlying bacterial surface exploration. We illustrate its use here by examining the surface motility of the pathogen Pseudomonas aeruginosa.
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