(A) Neurospora crassa hyphae [58], (B) Neurospora crassa life cycle. The haploid mycelium reproduces asexually by two processes: (1) simple proliferation of existing mycelium, and (2) formation of conidia (macroand micro-) which can be dispersed and then germinate to produce new mycelium. In the sexual cycle, mating can only occur between individual strains of different mating type, A and a. Fertilization occurs by the passage of nuclei of conidia or mycelium of one mating type into the protoperithecia of the opposite mating type through the trichogyne. Fusion of the nuclei of opposite mating types occurs within the protoperithecium to form a zygote (2N) nucleus [59].

Contexts in source publication

Context 1

... Ascomycete Neurospora crassa grows vegetatively as a haploid filamentous fungus. Figure 4A illustrates a segment of haploid hyphae which form a mass of thread-like filaments comprising the mycelium which is the vegetative part of the fungus. The life cycle of N. crassa is outlined in Figure 4B which indicates the structures and events of sexual reproduction. ...

Context 2

... 4A illustrates a segment of haploid hyphae which form a mass of thread-like filaments comprising the mycelium which is the vegetative part of the fungus. The life cycle of N. crassa is outlined in Figure 4B which indicates the structures and events of sexual reproduction. Like S. cerevisiae, N. crassa has two mating types. ...