FIG. 10.

pH controls mat formation. Wild-type or flo11Δ strains were inoculated onto low-agar YPD plates that were buffered to pH 4.9, 5.4, and 5.8 with 20 mM Na citrate buffer; cultures were grown for 5 days at 23°C and photographed. The mat in each case was then subjected to the overlay adhesion assay.