ascus

See also: Ascus

English
asci containing fungal spores.

Etymology

From New Latin ascus, from Ancient Greek ἀσκός (askós, “a sac”). Doublet of askos.

Noun

ascus (plural asci)

  1. (mycology) A sac-shaped cell present in ascomycete fungi; it is a reproductive cell in which meiosis and an additional cell division produce eight spores.
    • 1967, Constantine. J. Alexopoulos, Harold C. Bold, Algae and Fungi, page 101:
      The one important character which distinguishes the Ascomycetes from all other fungi is the ascus (plural, asci). This is a sac-like structure in which ascospores are formed following karyogamy and meiosis.

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