Ascomycetes

Ascomycetes
Fungi Fun"gi (f[u^]n"j[imac]), n. pl.; sing. {fungus}. (Biol.) A group of thallophytic plant-like organisms of low organization, destitute of chlorophyll, in which reproduction is mainly accomplished by means of asexual spores, which are produced in a great variety of ways, though sexual reproduction is known to occur in certain {Phycomycetes}, or so-called algal fungi. They include the molds, mildews, rusts, smuts, mushrooms, toadstools, puff balls, and the allies of each. In the two-kingdom classification system they were classed with the plants, but in the modern five-kingdom classification, they are not classed as plants, but are classed in their own separate kingdom fungi, which includes the phyla Zygomycota (including simple fungi such as bread molds), Ascomycota (including the yeasts), Basidiomycota (including the mushrooms, smuts, and rusts), and Deuteromycota (the {fungi imperfecti}). Some of the forms, such as the yeasts, appear as single-celled microorganisms, but all of the fungi are are eukaryotic, thus distinguishing them from the prokaryotic microorganisms of the kingdon Monera. [Webster 1913 Suppl. +PJC]

Note: The Fungi appear to have originated by degeneration from various alg[ae], losing their chlorophyll on assuming a parasitic or saprophytic life. In an earlier classification they were divided into the subclasses {Phycomycetes}, the lower or algal fungi; the {Mesomycetes}, or intermediate fungi; and the {Mycomycetes}, or the higher fungi; by others into the {Phycomycetes}; the {Ascomycetes}, or sac-spore fungi; and the {Basidiomycetes}, or basidial-spore fungi. [Webster 1913 Suppl.]


The Collaborative International Dictionary of English. 2000.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • ASCOMYCÈTES — Le groupe de Champignons constitué par les Ascomycètes édifie des fructifications souvent complexes, d’aspect et de taille très variables. Beaucoup n’apparaissent à l’œil nu que sous la forme de points ou de glomérules à peine plus gros que des… …   Encyclopédie Universelle

  • Ascomycetes — n. 1. 1 large class of higher fungi . Syn: class Ascomycetes. [WordNet 1.5] || …   The Collaborative International Dictionary of English

  • Ascomycetes — As co*my*ce tes, n. pl. [NL.; ascus + Gr. ?, ?, fungus.] (Bot.) A large class of higher fungi distinguished by septate hyph[ae], and by having their spores formed in asci, or spore sacs; the sac fungi. It comprises many orders, among which are… …   The Collaborative International Dictionary of English

  • Ascomycetes —   [griechisch], die Schlauchpilze …   Universal-Lexikon

  • Ascomycetes — Ascomycetes, Schlauchpilze, über 30000 (dazu 20000 Flechten und 30000 Fungi imperfecti) überwiegend terrestrische Arten umfassende größte Klasse der ⇒ Eumycota (echte Pilze). Die Mycelien der A. bestehen aus haploiden, septierten, verzweigten… …   Deutsch wörterbuch der biologie

  • Ascomycetes — Ascomycota Ascomycètes …   Wikipédia en Français

  • Ascomycètes — Ascomycota Ascomycètes …   Wikipédia en Français

  • Ascomycetes — Schlauchpilze Ascokarp der Frühjahrslorchel Systematik Klassifikation: Lebewesen …   Deutsch Wikipedia

  • Ascomycetes — A class of fungi characterized by the presence of asci and ascospores. Such fungi have generally two distinct reproductive phases, the sexual or perfect stage and the asexual or imperfect stage. Ajellomyces capsulatum and Ajellomyces dermatitidis …   Medical dictionary

  • Ascomycetes — Los ascomycetes constituyen una clase dentro de la división eumicetes del reino hongos. Son hongos con micelio tabicado que producen ascosporas endógenas. Archaeascomycetes Hemiascomycetes Euascomycetes …   Enciclopedia Universal

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”