The role of conditioning film formation and surface chemical changes on Xylella fastidiosa adhesion and biofilm evolution

► Periwinkle wilt (PW) culture medium forms conditioning film on different surfaces. ► This film changes the surface hydrophobicity, roughness, and chemical composition. ► Chemical surface changes are involved in facilitating biofilm growth. ► Results are correlated well with current models for Xylella fastidiosa cell adhesion.