Inhibitory effect of D21-6076 on hyphal elongation of C. albicans. C. albicans ATCC 90028 cells were incubated in Lee's medium, which is known to induce hyphal elongation, with (B, D) or without (A, C) 0.25 μg/ml of D21-6076. They were microscopically observed after 6 (A, B) and 24 (C, D) hours of static incubation at 37°C.