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This is a photomicrograph made with the scanning electron microscope
of the surface of the epithelium
from a frog with chytridiomycosis. The epithelial surface is
normally a relatively smooth and well organised surface.
With chytridiomycosis the surface becomes roughened, the cells
separate, and discharge papilla of B. dendrobatidis
protrude through the superficial surface.
When the plug disappears from the discharge papilla, tbe zoospores
escape into the water or onto the skin surface to infect adjacent
epithelial cells.
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