Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Zygospores are thick-walled resting spores formed by the fusion of two similar gametangia in fungi. They are a key characteristic of the phylum Zygomycota, providing a means for survival in adverse conditions.
5 Must Know Facts For Your Next Test
Zygospores form through sexual reproduction involving the fusion of haploid cells from two different mating types.
They have a thick wall that enables them to withstand harsh environmental conditions.
Once favorable conditions return, zygospores germinate to produce sporangia containing haploid spores.
Zygospore formation is an important process for genetic recombination and diversity in fungi.
Common examples of fungi that produce zygospores include Rhizopus and Mucor species.
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Related terms
Sporangium: A structure where spores are produced and stored.
Gametangia: Specialized structures or organs where gametes are formed.