FIG. 2.

Calcineurin is necessary for filamentous growth. (A) A. fumigatus conidia (1 × 10³ conidia/ml) were incubated on glucose minimal media at 37°C for 96 h, revealing poor growth and filamentation in the ΔcnaA mutant. (B) A. fumigatus conidia (1 × 10⁶ conidia/ml) grown in glucose minimal medium broth at 37°C were sampled at specified time points (144 h is shown), demonstrating blunted hyphal growth of the ΔcnaA mutant. Magnification, ×40 with Nomarski optics (differential interference contrast). Bar, 5 μm.