(A) Optical micrograph of WT A. cristatus strains under low osmotic pressure; (B,C) optical micrograph of the ΔveA deletion-type A. cristatus strains under low osmotic pressure at 24 and 72 h, respectively. (a) The structure of ascospores detected in (A); (b) the conidia detected in (B) with developing metulae; (c,d) were the single mature ascospores and conidia observed in (C), respectively.