zygospore

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zy·go·spore

(zī'gō-spōr),
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.
Synonym(s): zygosperm

zygospore

(zī′gə-spôr′, zĭg′ə-)
n.
A thick-walled diploid or multinucleate spore formed by the union of similar gametes in certain fungi and algae.

zygospore

a thick-walled resting SPORE that is formed from the union of similar gametes.