English: 1=GFP inductive fungal structures penetrate epidermal cells. CLSM image of infected palea shown in Figure 2D. The video contains 170 single images of the z-stack with 22 μm thickness in total. The z-series starts at the top of the biggest infection cushion (centre of image) and ends in the second or third cell layer underneath the epidermal layer. Fungal infection structures can be observed from the surface into the plant tissue. Tangential optical sections of the epidermis demonstrate that GFP inductive infection cushions and lobate appressoria invade epidermal cells.