Septation of the vegetative mycelium and ascogonial coils in pro11 and Δpro11 single mutants, as well as in ΔSmkin3/pro11 and ΔSmkin3Δpro11 double mutants. Arrow indicates septum in the ascogonial coil. Mycelium samples were grown on complete solid malt–cornmeal fructification medium for 2 days and stained with Calcofluor White M2R. Bars: white represent 20 μm and black represent 10 μm.