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ascus

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.02 sec.
as·cus  (sks)
n. pl. as·ci (s, -k)
A membranous, often club-shaped structure in which typically eight ascospores are formed through sexual reproduction of ascomycetes.
[New Latin, from Greek askos, bag.]
ascus [ˈæskəs]
n pl asci [ˈæsaɪ ˈæskaɪ]
(Life Sciences & Allied Applications / Botany) a saclike structure that produces (usually) eight ascospores during sexual reproduction in ascomycetous fungi such as yeasts and mildews
[from New Latin, from Greek askos bag]
ascus  (sks)
Plural asci (s, -k)
A 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.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.ascusascus - saclike structure in which ascospores are formed through sexual reproduction of ascomycetes
reproductive structure - the parts of a plant involved in its reproduction
ascomycete, ascomycetous fungus - any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus


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