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单词 ascus
释义

ascus


as·cus

A0456000 (ăs′kəs)n. pl. as·ci (ăs′ī′, -kī′) A membranous, often club-shaped structure in ascomycetes in which karyogamy occurs, followed by the formation of eight haploid ascospores.
[New Latin, from Greek askos, bag.]

ascus

(ˈæskəs) n, pl asci (ˈæsaɪ; ˈæskaɪ) (Botany) a saclike structure that produces (usually) eight ascospores during sexual reproduction in ascomycetous fungi such as yeasts and mildews[C19: from New Latin, from Greek askos bag]

as•cus

(ˈæs kəs)

n., pl. as•ci (ˈæs aɪ, -kaɪ, -ki) the sac in ascomycetes in which the spores are formed. [1820–30; < New Latin < Greek askós bag, sac]
Thesaurus
Noun1.ASCUS - saclike structure in which ascospores are formed through sexual reproduction of ascomycetesascus - saclike structure in which ascospores are formed through sexual reproduction of ascomycetesreproductive structure - the parts of a plant involved in its reproductionascomycete, ascomycetous fungus - any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus
Translations
asco

ascus


ascus

[′as·kəs] (mycology) An oval or tubular spore sac bearing ascospores in members of the Ascomycetes.

ascus


ascus

 [as´kus] the spore case of certain fungi.

ASCUS

In the Bethesda system, acronym for atypical squamous cells of undetermined significance , under cell.
See also: Bethesda system.

as·cus

, pl.

as·ci

(as'kŭs, as'ī), The saclike cell of Ascomycetes in which ascospores develop following nuclear fusion and meiosis. [G. askos, bag]

ASCUS

Atypical squamous cell of undetermined significance Cytology A cell seen in a pap smear of the cervix that fulfills some of the criteria–eg nuclear enlargement and irregularity, cytoplasmic clearing, and thickened cell membranes, that define cells typical of either a condyloma or a neoplasm. See CIN, HSIL, LSIL. Cf AGUS, SIL.

ASCUS

Abbreviation for atypical squamous cells of undetermined significance.
AscusFig. 50 Ascus . An ascus containing ascospores of Neurospora crassa.

ascus or (formerly) theca

(pl. asci) a cell present in the fruiting body of ASCOMYCETE fungi in which the fusion of HAPLOID nuclei occurs during sexual reproduction. This is normally followed by MEIOSIS, giving rise to four haploid cells, after which MITOSIS produces eight ASCOSPORES. The precise arrangement of ascospores within the ascus enables the events at meiosis to be fully analysed (see TETRAD ANALYSIS). The asci are usually enclosed within an aggregation of hyphae termed an ASCOCARP, a number of different types being recognized, e.g. perithecium, cleistothecium, apothecium.

ASCUS


AcronymDefinition
ASCUSAtypical Squamous Cells of Undetermined Significance
ASCUSAtypical Squamous Cells of Uncertain Significance
ASCUSAtypical Squamous Cells of Unknown Significance
ASCUSAssociation for School, College and University Staffing (now American Association for Employment in Education)
ASCUSAcademic Serials in Communication-Unified System (New York)

ascus


Related to ascus: colposcopy
  • noun

Words related to ascus

noun saclike structure in which ascospores are formed through sexual reproduction of ascomycetes

Related Words

  • reproductive structure
  • ascomycete
  • ascomycetous fungus
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更新时间:2024/12/23 21:40:07