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Scanning electron microscopy images of C. tropicalis on filament-inducing media. Calcineurin mutants (cnb1/cnb1) display yeast or pseudohyphal growth, while wild-type and crz1/crz1 mutants exhibit hyphal growth. Cells grown on 50% serum agar medium for 48 h at 37°C were processed for scanning electron microscopy and imaged (see Materials and Methods). Magnification = ×2,000. Bars = 10 μm.
