plectomycetes

Thân thiện

A scientist examines a plectomycetes specimen under a microscope.

Definition

Noun 1. A taxonomic class of fungi: Plectomycetes is a class of fungi characterized primarily by the formation of a specific type of enclosed fruiting body called a cleistothecium. The spores (ascospores) within this structure are only released when the fruiting body wall decays or disintegrates.

Examples

• Noun:
  • The Plectomycetes include many common molds, such as those in the genus Aspergillus.
  • Fungi classified under Plectomycetes produce their spores inside a cleistothecium.

Advanced Usage

• Taxonomic Context: In modern fungal taxonomy, the classification "Plectomycetes" is considered part of a historical morphological grouping. Many fungi once placed here are now reclassified within the phylum Ascomycota based on genetic data, though the descriptive term for the cleistothecial fruiting body remains relevant.
  • While the formal class Plectomycetes is less used in phylogenetic systems, the morphological feature—the cleistothecium—is a key diagnostic character.

Variants and Related Words

• Cleistothecium (noun): The enclosed, spherical fruiting body (ascocarp) typical of fungi in the Plectomycetes, which lacks a natural opening for spore release.
  • The cleistothecium is a defining structure for these fungi.
• Ascomycete (noun): A member of the phylum Ascomycota, the larger group to which these fungi belong, characterized by producing spores in a sac-like cell called an ascus.
  • All Plectomycetes are ascomycetes.

Synonyms

• Cleistothecial fungi: A descriptive synonym emphasizing the defining structural characteristic.
  • The study focused on cleistothecial fungi found in soil samples.

Related Terms

• Ascomycota (noun): The phylum or division of fungi that produce ascospores inside an ascus. Plectomycetes is a class within this group.
• Eurotiomycetes (noun): A modern class of Ascomycota that includes many fungi (e.g., , ) formerly placed in Plectomycetes, based on molecular phylogenetic classification.

Học thuật

Noun

1. class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)

Từ đồng nghĩa

• Plectomycetes
• class Plectomycetes