MICR 3220 Lecture Notes - Lecture 19: Basidiospore, Cutaneous Condition, Dikaryon
Document Summary
Eredium kind of pustule that goes into the urediaspores. Pustules are produced late in the season but they are black because they produce a different kind of spore called telliospores. Tellium kind of pustule melanin is incorporatied in its thick wall so it is a resting area, prevention against degredation. The nuclei (n+n) fused together to produce diploid (2n) during the development of the telliospore. The basidiospores are formed (they are the sexual spores of the basidiomycetes) One nucleus will go into each basidiospore so they are now 1n very far. Gone from n+n to 2n and now to 1n. Dikaryotic hyphae affect wheat, but basidospores are haploid therefore unable to infect wheat. Basidopspores are air borne although they don"t move. Basidospores travel in air and if lucky will land on alternate host: barberry and will penetrate directly in haploid hyphae (different from uredospores because they penetrate through stomates)