Fungal biologists often investigate specific processes, be them the developmental pathway that leads to the formation of conidiophores or they biosynthesis of toxins that contaminate food and feed. Although, for example, all species of the genus Aspergillus produce conidiophores, Aspergillus nidulans is very well suited for genetic analysis, is nonpathogenic, can be cultured in a standard laboratories with relative ease, produces billions of of conidia on Petri dishes, its optimal growth temperature is 37ºC and is genetically manipulable with relative ease