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1. Among the Phycomycetes, a thick-walled sexual spore arising from fusion of two morphologically identical structures, generally hyphal tips, bearing nuclei of opposite mating types (gametangia).
2. A resting sexual spore in the Zygomycetes resulting from fusion of two similar gametangia.
A thick-walled diploid or multinucleate spore formed by the union of similar gametes in certain fungi and algae.
Etymology: Gk, zygon + sporos, seed
the spore resulting from the conjugation of two isogametes, as in certain fungi and algae. Also called zygosperm.
zygosporea thick-walled resting SPORE that is formed from the union of similar gametes.
a thick-walled sexual spore produced by fungi in the class Zygomycetes.