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The form of the ascus, the capsule which contains the sexual spores, is important for classification of the Ascomycota. There are four basic types of ascus. There are four basic types of ascus. A unitunicate-operculate ascus has a "lid", the Operculum , which breaks open when the spores are mature and allows the spores to escape.
There are 2000 identified genera and 30,000 species of Ascomycota. The unifying characteristic among these diverse groups is the presence of a reproductive structure known as the ascus, though in some cases it has a reduced role in the life cycle. Many ascomycetes are of commercial importance.
The ascus is a diagnostic morphological feature of the bryozoan suborder Ascophora (hence the name of the suborder). [1] It is a water-filled sac of frontal membrane opening (ascopore) at or near the zooid orifice.
There is a well-known myth about the word quiz that says that in 1791, a Dublin theatre owner named Richard Daly made a bet that he could introduce a word into the language within 24 hours. He then went out and hired a group of street children to write the word "quiz", which was a nonsense word , on walls around the city of Dublin .
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The What in the World? Quiz is split into four different rounds. [1] 1) World of Extremes: The panel are given three different things and have to guess which is the most extreme. For example, which of the three things is the fastest, the slowest or the most deadly. An award of 2 points is given for a right answer. If one side is wrong, the ...
The generic name polyascus (poly "many" + ascus "bag") refers to the typical presence of multiple external sac-like female bodies, known as externae. In Polyascus species, these originate from asexual reproduction. [1]
Annulatascus is a genus of fungi in the Annulatascaceae family of the Ascomycota.The relationship of this taxon to other taxa within the Sordariomycetes class is unknown (incertae sedis), and it has not yet been placed with certainty into any order. [2]