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Fig. 8. A model for Spitzenkörper formation in A. gossypii. (A) A slow-growing hyphal tip is outlined, localization of the proteins listed below the sketch are shown in red. (B) Localization of the same proteins as in A in fast growing hyphae. (C) A model for Spitzenkörper formation. The relative amount of vesicle transport is symbolized by the width of the gray arrows. (D) Actin patches representing sites of endocytosis in slow and fast hyphae. In slow hyphae the tip front lacks actin patches (Knechtle et al., 2003). An extended tip zone lacks actin patches in fast hyphae (Fig. 7E).