ascus
Americannoun
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of ascus
1820–30; < New Latin < Greek askós bag, sac
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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A dikaryotic ascus that forms in the ascocarp undergoes plasmogamy, meiosis, and mitosis to form eight ascospores.
From Textbooks ● Jan. 1, 2015
A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores.
From Textbooks ● Jan. 1, 2015
The zygote undergoes meiosis without cell division, resulting in an ascus with four 1n nuclei arranged in a row.
From Textbooks ● Jan. 1, 2015
That is, inside the ascus, a diploid fungal nucleus undergoes meiosis — or sexual, reductive cell division — to produce ascospores.
From Scientific American ● Sep. 5, 2012
The number of sporidia contained in an individual ascus is usually less than in the majority of the Ascomycetes, and the sporidia approximate more nearly to the globose form.
From Fungi: Their Nature and Uses by Cooke, M. C. (Mordecai Cubitt)
Some asci have elastic rings at their tips that only allow spores out once a set pressured is reached.
From Scientific American ● Sep. 5, 2012
You can count the eight ascospores in this ascus: The tasty, tasty asci of a Morchella sp.
From Scientific American ● Sep. 5, 2012
But some discomycetes — fungi that produce their asci in a cup-like structure in which the fertile surface is completely exposed to the environment — have learned to synchronize their firing.
From Scientific American ● Sep. 5, 2012
In the diagram above, you can see the asci at various stages in meiosis.
From Scientific American ● Sep. 5, 2012
The Ascomycetes are primarily subdivided into Exoasci and Carpoasci, groups based on the character of the asci.
From Student's Hand-book of Mushrooms of America, Edible and Poisonous by Taylor, Thomas
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
