Debaffling Biofilms
CAUGHT ON FILM:Courtesy of David Davies and Peg DyrckxPseudomonas aeruginosa biofilm development occurs in five stages. 1. Reversible attachment: Cells transiently affix to substratum, and surface induced gene expression results in a protein profile significantly different from planktonic bacteria. 2. Irreversible attachment: Cells reorient themselves, clusters develop, motility is lost, and the las quorum sensing regulon becomes activated. 3. Maturation I: Cell clusters become thicker than 10 &