Figure 1.—

Growth of wild-type and mutant strains at pH 7.5 and in the presence of 4 mm ZnCl₂. Logarithmically growing wild-type yeast strain BY4741 and the indicated kanMX deletion strains were transferred to YEPD plates buffered to pH 5, buffered to pH 7.5, or unbuffered but containing 4 mm ZnCl₂. The undiluted culture is shown at the left along with 10-fold serial dilutions going left to right.