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Basidiomycota are filamentous fungi composed of hyphae (except for basidiomycota-yeast) and reproduce sexually via the formation of specialized club-shaped end cells called basidia that normally bear external meiospores (usually four). These specialized spores are called basidiospores. [4] However, some Basidiomycota are obligate asexual ...
Diagram showing a basidiomycete mushroom, gill structure, and spore-bearing basidia on the gill margins. A basidium (pl.: basidia) is a microscopic spore-producing structure found on the hymenophore of reproductive bodies of basidiomycete fungi.
All basidiocarps serve as the structure on which the hymenium is produced. Basidia are found on the surface of the hymenium, and the basidia ultimately produce spores. In its simplest form, a basidiocarp consists of an undifferentiated fruiting structure with a hymenium on the surface; such a structure is characteristic of many simple jelly and club fungi.
Agaricomycotina is one of three subdivisions of the Basidiomycota (fungi bearing spores on basidia), and represents all of the fungi which form macroscopic fruiting bodies. Agaricomycotina contains over 30,000 species, [ 1 ] divided into three classes : Tremellomycetes , Dacrymycetes , and Agaricomycetes . [ 2 ]
In addition to having septate basidia, heterobasidiomycetes also frequently possess large irregularly shaped sterigmata and spores that are capable of self-replication – a process where a spore, instead of germinating into a vegetative hypha, gives rise to a sterigma and a new spore, which is then discharged as if from a normal basidium.
The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores.In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia (basidiomycetes) or paraphyses (ascomycetes).
This is a list of families in the phylum Basidiomycota of kingdom Fungi.The Basidiomycota are the second largest phyla of the fungi, containing 31515 species. [1] The phylum is divided into three subphyla, the Pucciniomycotina (rust fungi), the Ustilaginomycotina (smut fungi), the Agaricomycotina, and two classes of uncertain taxonomic status (incertae sedis), the Wallemiomycetes and the ...
The majority of species within the Auriculariaceae produce gelatinous basidiocarps (fruit bodies) on dead wood. In some these are conspicuous and may be ear-shaped, button-shaped, lobed, or effused. Their hymenophores (spore-bearing surfaces) may be smooth, warted, veined, spiny, or poroid.