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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 .
These fungi are said to be homothallic, versus the normal heterothallic species with mating types. Others are secondarily homothallic, in that two compatible nuclei following meiosis migrate into each basidiospore, which is then dispersed as a pre-existing dikaryon. Often such species form only two spores per basidium, but that too varies.
When a basidiospore matures, sugars present in the cell wall begin to serve as condensation loci for water vapour in the air. Two separate regions of condensation are critical. At the pointed tip of the spore (the hilum) closest to the supporting basidium, Buller's drop builds up as a large, almost spherical water droplet.
The 1995 edition of the influential Ainsworth and Bisby’s Dictionary of the Fungi sought to replace the term anamorph with mitosporic fungus and teleomorph with meiosporic fungus, based on the idea that the fundamental distinction is whether mitosis or meiosis preceded sporulation. This is a controversial choice because it is not clear that ...
fungus: Greek μύκης, μυκητ-(múkēs, mukēt-), mushroom or fungus onychomycosis: myel(o)-of or relating to bone marrow or the spinal cord: Greek μυελός (muelós), marrow, bone-marrow myelin sheath, myeloblast: myl(o)-of or relating to molar teeth or the lower jaw Greek μῠ́λη (múlē, mill, grind, molars mylohyoid nerve ...
This glossary of mycology is a list of definitions of terms and concepts relevant to mycology, the study of fungi. Terms in common with other fields, if repeated here, generally focus on their mycology-specific meaning. Related terms can be found in glossary of biology and glossary of botany, among others.
Here's why mold grows on food, what happens when you eat it, and tips to keep food mold-free. What is mold? Molds are microscopic fungi, Josephine Wee, Ph.D., an assistant professor of food ...
Close up of mold on a strawberry Penicillium mold growing on a clementine. A mold (US, PH) or mould (UK, CW) is one of the structures that certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores are the dispersal units of the fungi.