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The fungi Saccharomyces produces ascospores when grown on V-8 medium, acetate ascospore agar, or Gorodkowa medium. These ascospores are globose and located in asci. Each ascus contains one to four ascospores. The asci do not rupture at maturity. Ascospores are stained with Kinyoun stain and ascospore stain.
As an ascomycete, Ceratocystis coerulescens produces ascospores encased as groups of eight in asci. The asci are protected by a perithecium, a flask-shaped ascocarp, in which the pathogen overwinters. Ascospores are the sexual spores and are far less common than the asexual spores known as conidia.
The asci (spore-bearing structures) are formed with croziers; they are broadly club-shaped with a stalk, containing eight spores that are often arranged in two rows. At maturity, the asci release the ascospores in a powdery mass atop the capitulum.
P. capsellae is an ascomycete, meaning it produces ascospores housed in asci as means of sexual reproduction. Sexual structures are found in the sexual stage of this fungus, which has been classified as Mycosphaerella capsellae. The ascocarp of M. capsellae is a cleistothecium, meaning asci are shielded from the environment prior to ascospore ...
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. In this case the ascocarp is round with the hymenium enclosed, so the spores do not automatically get released, and fungi with cleistothecia have had to develop new ...
The paraphyses are abundant, hyaline (transparent or glass-like), persistent. The asci are 8-spored, unitunicate, pedicellate, persistent, with a J+ or J−, apical ring. Ascospores hyaline, multi-septate, often guttulate, lacking any mucilaginous sheath or appendages. The asexual morph was undetermined (as of March 2021). [10]
Randomly arranged ascospores that set in the upper area of asci would be discharged through operculum at the asci tip. [9] The ultrastructure of ascospores of A. nigricans was investigated to have a deeper understanding of the formation of wall layers and ornamentation of ascospores. The invagination of the plasma membrane of ascus generates ...
The Cordycipitaceae are a family of parasitic fungi in the Ascomycota, class Sordariomycetes and order Hypocreales.The family was first published in 1969 by mycologist Hanns Kreisel, [1] but the naming was invalid according to the code of International Code of Nomenclature for algae, fungi, and plants.