FIG 7.
RgdA downregulates GT production. (A) Heat map of genes encoding toxin-related proteins. Most gliotoxin biosynthetic genes were upregulated by the loss of rgdA. (B) qRT-PCR analysis of GT-related genes in WT, ΔrgdA, and complemented (C′) strains. Statistical differences between WT and mutant strains were evaluated with ANOVA. **, P < 0.01. (C) Determination of GT production in WT, ΔrgdA, and complemented strains. The culture supernatant of each strain was extracted with chloroform and subjected to TLC. The arrow indicates GT.