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Copper Resistance with Increased Yah1 Expression Is Abolished in Strains Defective for Antioxidant Defense
S. cerevisiae mxrΔ and sod2Δ mutants transformed with the tet bearing plasmid, either empty (ev) or overexpressing YAH1, were cultured in YNB medium supplemented or not with 0.6 mM Cu(NO3)2. Doxycycline was excluded to give maximal YAH1 expression. SEMs from triplicate independent growth experiments are smaller than the dimensions of the symbols.
