The life cycle of the zygomycete Rhizopus stolonifer
Sexual reproduction :
Mycelia of different mating types (-) and (+) forming hyphal extension (gametangia) which each of the mycelia encloses several haploid nuclei.
During plasmogamy, a zygosporangium forms, containing multiple haploid nuclei from the two parents.
The zygosporangium develops a rough and thick-walled coating that can resist harsh condition for month.
When the condition are favourable , karyogamy occurs, then later, the meiosis also occurs.
During meiosis, the zygosporangium germinates into a sporangium on a short stalk.
Next, the sporangium disperses genetically diverse haploid spore.
The spores germinate and grow into new mycelia.
Asexual reproduction :
Mycelia can also reproduce asexually by forming sporangia that produce genetically identical haploid spore.