In this article we will discuss about the covered smut of barley caused by basidiomycetes. Host: Hordeurn vulgare Pathogen: UstHago hordei Introduction to the Covered Smut of Barley: The disease is of common occurrence in the barley growing tracts of India. It causes considerable damage in the Punjab, Uttar Pradesh, Madhya Pradesh and certain parts of Bihar. Symptoms of Covered [...]
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 [...]
The following points highlight the three main stages of host pathogen relationship. The stages are: 1. Pre-Penetration Stage 2. Penetration Stage 3. Post-Penetration Stage. 1. Pre-Penetration Stage: During pre-penetration stage the pathogen (inoculum) on arrival on the host surface interacts sharply with the surrounding environment and host itself. The enÂvironment which is an aggregate of all external conditions including temperature, [...]