In this article we will discuss about the corn smut caused by basidiomycetes. Host: Zea Mays Pathogen: Ustilago maydis Introduction to the Corn Smut: Corn smut disease is worldwide in its distribution. In India the disease occurs wherever com is grown particularly in the Punjab, U.P. and Kashmir. It is known as Kangiari. Importance of Corn Smut Disease: The amount [...]
In this article we will discuss about:- 1. Introduction to Uredinales 2. Nuclear Cycle of Uridinales 3. Biological Specialization 4. Classification. Introduction to Uredinales: The Uredinales, or rust fungi comprise a large group of obligate parasites. They are called rusts, because of the rusty, reddish-brown colour of their spores, which are formed chiefly upon surfaces of host leaves and stems [...]
In this article we will discuss about the life cycle pattern of uredinales, explained with the help of suitable diagrams. In the usual course of the life cycle, as a result of infection of the host by sporidia, monokaryotic mycelia are produced which give rise to spermogonia (sing, spermogonium). The spermogonia are also known as pycnia (sing, pycnium). The spermogonia [...]