Fig. 3

Representative SEM images of mycelial material three-dimensional structure and morphological features. (A) Control (A1405) sample surface showing an abundance of developmental structures (e.g., conidia, Hülle cells), loose packing of hyphae, and voids in the material. (B) Fracture point of the same control sample. (C) The ΔmpkA (A1404) sample surface shows fewer developmental structures, denser hyphal packing, and an absence of voids. (D) Fracture point of the same ΔmpkA sample