Cagup1Δ null mutant strain displays an altered sensitivity to specific ergosterol biosynthesis inhibitors. Isogenic wt, Cagup1Δ null mutant and CF-Ca001 strain were grown to mid-exponential phase in YPD medium. Ten-fold serial dilutions were spotted onto (1) YPD plates (control) and plates supplemented with (2) clotrimazole 68.8 μg/ml, (3) ketoconazole 106.3 μg/ml, (4) fluconazole 30.6 μg/ml and (5) fenpropimorph 60 μg/ml. All plates were incubated at 30°C and photographed after 3-5 days. The gup1Δ panel photos are representative of the results obtained with the several clones (3-5) of Cagup1Δ null mutant strain tested.