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basidiospore
[buh-sid-ee-oh-spawr, -spohr]
basidiospore
/ æˈɪɪəʊˌɔː /
noun
one of the spores, usually four in number, produced in a basidium
basidiospore
A sexually produced fungal spore borne on a basidium in the fungi known as basidiomycetes. Basidiospores are produced by the union of the nuclei at the tip of a binucleated segment of a hypha. The resulting zygote then divides by meiosis into four haploid nuclei, each of which migrates to the very tip to be released as a basidiospore. A typical mushroom produces billions of basidiospores.
Other 51Թ Forms
- basidiosporous adjective
- ˌ徱ˈǰdzܲ adjective
51Թ History and Origins
Origin of basidiospore1
Example Sentences
D, Passage of a nucleus through the sterigma into the basidiospore.
The young basidium contains two nuclei, which later fuse; the fusion-nucleus then undergoes two successive divisions, involving a reduction of chromosomes, and each of the four resultant nuclei passes through a sterigma into a basidiospore.
Some of these terminal cells push out a little finger of protoplasm, which swells, thickens its wall, and becomes detached from the mother-cell as a spore, here called specially a basidiospore.
Typically, e.g. in the Toad-stools, it is a club-shaped structure, produced at its free end into four slender processes, the sterigmata, each of which bears a basidiospore at its tip.
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