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Ascomycetes    
子囊菌纲

子囊菌纲

Ascomycetes
n 1: large class of higher fungi coextensive with division
Ascomycota: sac fungi [synonym: {Ascomycetes}, {class
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.]


Ascomycetes \Ascomycetes\ n.
1. 1 large class of higher fungi .

Syn: class Ascomycetes.
[WordNet 1.5]


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 yeasts, molds, mildews, truffles, morels, etc. The
class is coextensive with the phylum Ascomycota. --
{As`co*my*ce"tous}, a.
[Webster 1913 Suppl. WordNet 1.5]


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  • Ascomycota - Wikipedia
    Examples of ascomycetes include Penicillium species on cheeses and those producing antibiotics for treating bacterial infectious diseases Many ascomycetes are pathogens, both of animals, including humans, and of plants
  • Ascomycota | Description, Fungi, Examples, Facts | Britannica
    Ascomycota, a large phylum of fungi (kingdom Fungi) containing over 64,000 species Ascomycetes are characterized by a saclike structure, the ascus, which contains four to eight ascospores in the sexual stage
  • 24. 3C: Ascomycota - The Sac Fungi - Biology LibreTexts
    Key Points Ascomycota fungi are the yeasts used in baking, brewing, and wine fermentation, plus delicacies such as truffles and morels Ascomycetes are filamentous and produce hyphae divided by perforated septa Ascomycetes frequently reproduce asexually which leads to the production of conidiophores that release haploid conidiospores
  • Ascomycetes - an overview | ScienceDirect Topics
    Ascomycetes are named after the ascus, a sac-shaped structure that contains ascospores, the products of meiosis during the sexual reproductive process Asci are formed when the female sex cell (ascogonium) is fertilized by the male gamete (antheridium)
  • Ascomycota, Ascomycetes Sac Fungi
    The Ascomycota are highly important in the break down of organic matter in the soil, as plant pathogens and for the production of antibiotics and other industrial substances Many species are purely saprophytic; some are obligate parasites and others facultatively saprophytic or parasitic
  • Ascomycota: The Sac Fungi | Biology for Majors II
    Many ascomycetes are of commercial importance Some play a beneficial role for humanity, such as the yeasts used in baking, brewing, and wine fermentation, and directly as food delicacies such as truffles and morels
  • Ascomycota: Characteristics, Forms, and Importance
    Ascomycota members are contributors to various ecosystems, impacting both natural processes and human endeavors A defining feature of Ascomycota is the ascus, a microscopic, sac-like structure where sexual spores, called ascospores, are produced Each ascus contains four to eight ascospores
  • Ascomycetes | Botany | Research Starters | EBSCO Research
    Ascomycetes are a diverse group of fungi classified within one of the four phyla of the fungal kingdom, characterized by their unique reproductive structure called an ascus, where sexual spores are produced
  • What are Ascomycota? - ascomycete. org
    The Ascomycota, or Ascomycetes, represent a phylum within the kingdom of Fungi, which are non-mobile, cellular organisms, whose structure is composed by threads called hyphae They produce their compounds by absorption or exchange (heterotrophy) and reproduce by spores
  • Ascomycetes: Features and Significance | Fungi - Biology Discussion
    The majority of ascomycetes are saprophytic, some are parasites of insects and other animals, and some are responsible for causing destructive plant diseases Some ascomycetes characteristically grow on dung and are popularly called coprophilous fungi (Peziza)





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