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Figure 4

Figure 4. Calcofluor white stained Ustilago maydis filaments.
Top (a): Awl-shaped sporidia and filaments of the solopathogenic U. maydis strain SG200 on top of an infected maize leaf 24 hours after inoculation.
Bottom (b): Sporidia, filaments and appressoria (bright circular spots) of the solopathogenic U. maydis strain SG200 on top of a hydrophobic surface 24 hours after inoculation.

(click to enlarge figure)