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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 ...
Most basidiomycota have single celled basidia (holobasidia), but some have ones with many cells (a phragmobasidia).For instance, rust fungi in the order Puccinales have phragmobasidia with four cells that are separated by walls along their cross section.
Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. Typically, four basidiospores develop on appendages from each basidium, of which two are of one strain and the other two of its opposite strain. In gills under a cap of one common species ...
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 phylum Basidiomycota can be divided into three major lineages: mushrooms, rusts and smuts. Fusion of haploid nuclei occurs in the basidia, club-shaped end cells. Shortly after formation of the diploid cell, meiosis occurs and the resulting four haploid nuclei migrate into four, usually external cells called basidiospores.
However, some C. neoformans cells can survive intracellularly in macrophages because of the protective nature of the polysaccharide capsule as well as its ability to produce melanin. [ 22 ] [ 3 ] Intracellular survival appears to be one of the factors contributing to latency, disseminated disease, and resistance to eradication by antifungal agents.
The microscopic characteristics and cytogenetics of C. micaceus are well known, and it has been used frequently as a model organism to study cell division and meiosis in basidiomycetes. Chemical analysis of the fruit bodies has revealed the presence of antibacterial and enzyme-inhibiting compounds.
In the Basidiomycota this is the dominant phase, with most Basidiomycota monokaryons weakly growing and short-lived. Dikaryons shown in a Basidiomycete mitosis cycle The formation of a dikaryon is a plesiomorphic character for the subkingdom Dikarya , which consists of the Basidiomycota and the Ascomycota .