basidia
Noun (plural of basidium): In mycology, "basidia" are microscopic, club-shaped or cylindrical reproductive structures found on the fruiting bodies of basidiomycete fungi (e.g., mushrooms, puffballs). They are the cells where sexual spores called basidiospores are produced and borne externally on tiny stalks called sterigmata.
- (These spore-producing cells line the gill surfaces.)
- (The reproductive cells eject spores into the air.)
- (A single basidium typically generates four spores.)
"holobasidia": basidia that are single-celled and not divided by septa (cross-walls).
- Holobasidia are characteristic of many common mushrooms. (These undivided basidia are typical in agaric fungi.)
"phragmobasidia": basidia that are divided into cells by transverse or longitudinal septa.
- Rust and smut fungi produce phragmobasidia. (These segmented basidia are found in certain parasitic fungi.)
Basidium (n, singular): the individual cell that produces basidiospores.
- A single basidium can be seen under high magnification. (One such cell is visible.)
Basidiospore (n): a spore produced on a basidium.
- Basidiospores are released from the basidia into the air. (The spores are ejected from the reproductive cells.)
Basidiomycete (n): a fungus that produces basidia (e.g., mushrooms, bracket fungi).
- Basidiomycetes are a major phylum of fungi. (These fungi include many common species.)
- Spore-bearing cell: a general term for a cell that produces spores (though not specific to basidia).
- Basidial cell: a more precise synonym used in technical texts.
- There are no common idioms involving "basidia" due to its highly specialized scientific usage.
- "Basidia" is a noun and does not form phrasal verbs.
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