Elasticity and wrinkled morphology of Bacillus subtilis pellicles
Éric Raspaud (LPS Orsay)
Bacterial biofilms refer to communities of bacteria that self-assemble into an extracellular cohesive matrix on a surface. We are recently interested in floating biofilms formed by wild strains of Bacillus subtilis on liquid medium. Wrinkles appear during their maturation. We have studied the formation of wrinkles in relation to their mechanical property and have shown that they could be due to a buckling instability. In this talk I will present our experimental results and their theoretical interpretations.
Trejo M., C. Douarche, V. Bailleux, C. Poulard, S. Mariot, C. Regeard, E. Raspaud, Elasticity and wrinkled morphology of Bacillus subtilis pellicles. Proc Natl Acad Sci USA 110 (2013), 2011-2016.