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Agaricus bisporus basidiospores. A basidiospore is a reproductive spore produced by basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia.
In the human pathogenic genus Cryptococcus, four nuclei following meiosis remain in the basidium, but continually divide mitotically, each nucleus migrating into synchronously forming nonballistic basidiospores that are then pushed upwards by another set forming below them, resulting in four parallel chains of dry "basidiospores". [citation needed]
Microscopic image of a Zoospore: Aplanospores Immobile, however still produce flagella Autospores: Immobile spores that do not produce flagella Autospores of a strain of Jenufa aeroterrestrica: Ballistospores: Forcibly discharged from the fungal fruiting body due to internal force (such as built up pressure) Basidiospores and/or part of the ...
All Russulaceae, including the corticioid species, are characterised by spherical to elliptic basidiospores with a faint to very distinct (e.g. warty, spiny, or crested) ornamentation that stains bluish-black with Melzer's reagent (an amyloid stain reaction). [10] [30] Basidia (spore-bearing cells) are usually club-shaped and four-spored. [44]
The type species A. angusticystidiatus from Thailand is a smallish beige Agaricus with characteristic boat-shaped basidiospores. It has a strong unpleasant smell like members of section Xanthodermatei , but unlike these, its flesh does not change color when bruised, but turns dark reddish-brown when cut, and neither application of KOH nor ...
Cronartium ribicola has two obligate hosts: Pinus spp and Ribes spp. [5] Five-needle pines (Pinus spp.) are infected in the fall by basidiospores that have spread under cool, moist conditions from the alternate host, currants and gooseberries (Ribes spp.), and germinated on needles to enter with germ tubes through open stomata. [6]
A decades-old U.S. government ban on federally licensed firearms dealers selling handguns to adults under the age of 21 is unconstitutional, a U.S. appeals court held on Thursday, citing recent U ...
Their spores, called basidiospores, are produced on the gills and fall in a fine rain of powder from under the caps as a result. At the microscopic level, the basidiospores are shot off basidia and then fall between the gills in the dead air space. As a result, for most mushrooms, if the cap is cut off and placed gill-side-down overnight, a ...