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As a result, the ascus will contain four pairs of spores. Then the ascospores are released from the ascus. In many cases the asci are formed in a regular layer, the hymenium, in a fruiting body which is visible to the naked eye, here called an ascocarp or ascoma. In other cases, such as single-celled yeasts, no such structures are found.
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.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 January 2025. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. The Last Judgment by painter Hans Memling. In Christian belief, the Last Judgement is an apocalyptic event where God makes a final ...
Ponil Complex Fire: New Mexico: Also called the Philmont fire. 2002: 31,016 acres (12,552 ha) Mt. Zirkel Complex Fire: Colorado: Started August. 2002: 467,066 acres (189,015 ha) Rodeo–Chediski Fire: Arizona: Threatened, but did not burn the town of Show Low, Arizona. 2002: 137,760 acres (55,750 ha) Hayman Fire in Pike National Forest: Colorado
Ascus (Ancient Greek: Ἄσκος) was a giant from ancient Greek mythology, who in conjunction with Lycurgus of Thrace chained the god Dionysus and threw him into a river. The god Hermes (or, according to other tellings, Zeus ) rescued Dionysus, conquered (ἐδαμασεν) the giant, flayed him, and made a bag (ἄσκος) of his skin.
The ascomatal wall is called peridium and typically consists of densely interwoven hyphae or pseudoparenchyma cells. It may be covered with hyphal outgrowth called appendages . The asci are globose, deliquescent, and scattered throughout the interior cavity i.e. as in Eurotium or arising in tufts from the basal region of ascocarps as in Erysiphe .
Usnea filipendula – one of about 20,000 described species of lichen. The following outline provides an overview of and topical guide to lichens.. Lichen – composite organism made up of multiple species – a fungal partner, one or more photosynthetic partners, which can be either green algae or cyanobacteria, and, in at least 52 genera of lichens, a yeast. [1]
The perithecia have short pseudoparaphyses; [39] these vertical, filament-like support structures are similar to paraphyses but grow downwards in the perithecial cavity before ascus formation. [40] In two genera, Endocarpon and Staurothele , algal cells occur in the hamathecium. [ 39 ]