ascus

/as-kuhs/US // ˈæs kəs //UK // (ˈæskəs) //

蛔虫,蛔虫症,蛔虫病,蛔蟲

Definitions

n.名词 noun

1
plural as·ci [as-ahy, -kahy, -kee]. /ˈæs aɪ, -kaɪ, -ki/. Mycology.
- : the sac in ascomycetes in which the sexual spores are formed.

The yellow spores are very minute, each ascus containing eight of them, and they are divided by a transverse partition or septum.
This operculum may be the more readily seen when the ascus is coloured by a drop of tincture of iodine.
Each ascus contains a definite number of sporidia, which are sometimes coloured.
The sporidia are usually eight in each ascus, either arranged in single or double rows, or irregularly grouped together.
Other species contain linear sporidia, which are often the length of the ascus, and may either be simple or septate.