What is basidia in biology?

basidium, in fungi (kingdom Fungi), the organ in the members of the phylum Basidiomycota (q.v.) that bears sexually reproduced bodies called basidiospores. The basidium serves as the site of karyogamy and meiosis, functions by which sex cells fuse, exchange nuclear material, and divide to reproduce basidiospores.

What is basidia Class 11?

Basidium is a club-shaped structure having sexual cells that produce sexual spores. The sexual cells produced are called Ascospores. The sexual spores produced are called basidiospores.

What does basidiospores mean?

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.

How do basidia produce spores?

Spore-Producing Cells In basidia, the spores are produced externally. The spores are released when they break off. (In puffballs, the basidia are contained within an outer shell and the spores are released when the casing collapses.)

What is ascus in biology?

An ascus is a saclike structure enclosing the ascospores. The type of ascus is fundamentally important in the classification of ascomycetes. In discoid fungi the ascus may be operculate, opening with a lid or similar discharge mechanism, and relatively thin-walled, or it may be inoperculate and thick-walled.

What is ascus and basidium differentiate between them with examples?

Ascus vs Basidium Ascus is a sac-shaped reproductive cell which produces sexual spores called ascospores. Basidium is a club-shaped sexual cell which produces sexual spores of basidiomycetes called basidiospores. Ascus is a sexual reproductive structure unique to phylum Ascomycetes.

What is the difference between Basidium and Basidiocarp?

A basidium is the fruiting body of a mushroom-producing fungus, and it forms four basidiocarps. The result of the plasmogamy step is four basidiospores. Karyogamy results directly in the formation of mycelia. A basidiocarp is the fruiting body of a mushroom-producing fungus.

What are spores in fungi?

Fungal spores are microscopic biological particles that allow fungi to be reproduced, serving a similar purpose to that of seeds in the plant world. Fungi decompose organic waste and are essential for recycling of carbon and minerals in our ecosystem.

Where are basidia produced?

Basidia typically develop later in the sporocarp (Fig. 100.15), these becoming more gelatinous with age, but mostly remain small and often reach no more than 2 mm in diameter. The basidia are Tremella-like and produce epibasidia and basidiospores.

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