Fig. 2From: The roles of Arabidopsis HSFA2, HSFA4a, and HSFA7a in the heat shock response and cytosolic protein responseAnalysis of HS and AZC responsiveness of AtHSF mutants by GUS staining. AtHSF mutant plants were transformed with a chimeric Oshsp17.3Pro::GUS gene as described. a Seedlings from independent transgenic lines underwent HS or AZC treatment as indicated and GUS histochemical staining. Non-stress control condition (Ctrl). Relative GUS activity of seedlings treated with b, c HS and d, e AZC. Data are mean ± SE GUS activity relative to that of the Ctrl from three independent experiments and the fold expression is indicated. Bars with the same letter are not significantly different at P < 0.05Back to article page