study of ustilago plant, Slides of Botany and Agronomy

Download study of ustilago plant and more Slides Botany and Agronomy in PDF only on Docsity! USTILAGO PRESENTED BY: ZAINAB KHALID TAXONOMIC POSITION Kingdom:Fungi Division:Amastigomycitina class:Basidiomycitina Order: Ustilaginales Family:ustilago Specie:U.titicci. PLANT BODY DISEASE OF USTILAGO: ° Seed born ° Dikaryotic hyphae is present ¢ When the infected seed are sown the embro starts germination,the dormant mycelium becomes active and keep on growing with apical meristem without causing harm to plant.When the ear is produced, mycelium enters into flower primordial and form a mass of hyphae which are binucleate. REPRODUCTION Reproduction is done by asexually with formation of spores. Spores are produced in such a large number that whole inflorescence transferred into black powdery mass. Spores are called as teleotospores or chlymadospores Each spore is uni or binucleate. ¢ Covered Smut: In covered Smut,the spores are enclosed by memberouse covering of grains.They are not exposed to air They are liberated when grain in broken. Example: Loose smut of barley,sugar cane