Effect of UV exposure on germination of M. lepidiotae Ml03 wild-type strain and MlUV-40b mutant. Conidial germination was determined over the indicated time course for untreated (Ml03-0 and UV-40b-0) and cells exposed to UV radiation for 40 min (Ml03-40 and UV-40b-40) (as described in the “Materials and Methods” section). Data are presented as mean ± SE.