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ascospore
[ as-kuh-spawr, -spohr ]
ascospore
/ ˈæəˌɔː /
noun
- one of the spores (usually eight in number) that are produced in an ascus
ascospore
/ ă′ə-ô′ /
- A sexually produced fungal spore formed within an ascus of ascomycetes. Ascospores have a haploid number of chromosomes and are formed by meiosis of the diploid zygote that results when the nuclei of sexually compatible hyphae fuse together. When an ascospore is released and lands in a place that is rich in nutrients, it germinates and sends out hyphae of its own.
Other yvlog Forms
- ··ǰ· [as-k, uh, -, spawr, -ik, -, spor, -], ·Dz··dzܲ [as-, kos, -per-, uh, s, as-k, uh, -, spawr, -, -, spohr, -], adjective
yvlog History and Origins
Origin of ascospore1
Example Sentences
That is, inside the ascus, a diploid fungal nucleus undergoes meiosis — or sexual, reductive cell division — to produce ascospores.
By this means the ascus cell is brought uppermost, and after the fusion of the two nuclei it develops enormously and produces the ascospores.
The spores of Ferns, ascospores, and some conidia are also liberated explosively.
These latter are thus seen to be carpospores, comparable to those of Red Alg�, and to the ascospores of Ascomycetes.
Typically, an ascus is a cylindrical or club-shaped structure containing at maturity eight ascospores, which are usually liberated explosively and thereafter dispersed by the wind.
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