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ascus
[as-kuhs]
noun
plural
ascithe sac in ascomycetes in which the sexual spores are formed.
ascus
/ ˈæə /
noun
a saclike structure that produces (usually) eight ascospores during sexual reproduction in ascomycetous fungi such as yeasts and mildews
ascus
plural
asciA membranous, often club-shaped structure inside which ascospores are formed through sexual reproduction in species of the fungi known as ascomycetes. The ascus is unique to ascomycetes and distinguishes them from other kinds of fungi. Asci are formed when two hyphae that are sexually compatible conjugate. Each ascus typically develops eight ascospores. Asci swell at maturity until they burst, shooting the ascospores into the air.
51Թ History and Origins
Origin of ascus1
51Թ History and Origins
Origin of ascus1
Example Sentences
Many ascomycetes produce their asci in cups, and in the case of the beech orange, the cups are the orange dimples of the golf ball.
That is, inside the ascus, a diploid fungal nucleus undergoes meiosis — or sexual, reductive cell division — to produce ascospores.
The conclusion of the epitaph is perplexing: it states that her husband dedicated it to her and her son's memory—under "the axe"—"Sub asci� dedicavit."
In the development of the ascus we find two nuclei at the base which fuse together to form the single nucleus of the young ascus.
Exoascine�, a family of parasitic ascomycetous Fungi, distinguished by the absence of any definite fruit-body, the asci being produced in a layer on the surface of the host.
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