Lectin binding to M. pulmonis biofilms that produce VsaA (strains CT182-R3 [A, B, and C] and CTp12 [G]) or VsaG (strains CTG-R5 [D, E, and F] and CTG-R40 [H]). The binding of GS-II (left panels), WGA (center panels), or ConA (right panels) is shown in green, and the DNA (Hoechst 33342) is shown in blue. The honeycombed region of the biofilm is shown in the optical cross-section in panel B (arrow). The red scale bars represent 10 μm.