Figure 4. Full induction by S. gallinarum or lactic acid requires the yeast transcription factor SOK2.
(A) S. gallinarum spotted next to either wild type or sok2∆ yeast cells on GLY + GlcN, or control medium GLY. (B) Plating assay (see Materials and methods) comparing spontaneous and lactic acid-induced [GAR+] frequency in wild type and sok2∆ cells. Lactic acid-induction frequencies differ from those in Figure 1C due to strain background BY4741, which has a lower frequency of [GAR+] acquisition (Brown and Lindquist, 2009). Plotted the same as in Figure 1C.