The below mentioned article provides a note on peronospora which causes diseases like downy mildews. This will also help you to draw the structure and diagram of peronospora. This is the most advanced family of order Peronosporales. It comprises 6 genera with numerous species. All of them are important plant pathogens which are obligate parasites of flowering plants such as [...]
In this article we will discuss about the life cycle of pythium with the help of suitable diagrams. Somatic Phase in Pythium: The mycelium (Fig. 6.18 A) represents the vegetative or somatic phase of the fungus. It is well developed, and coenocytic. It presents a white, fluffy appearance and consists of long rather slender, hyaline much branched hyphae which are [...]
In this article we will discuss about the life cycle of spharotheca with the help of a suitable diagram. Mycelium of Spharotheca: The mycelium is superficial i.e., ectophytic and is made up of branched septate hyphae, the cells being uninucleate. The mycelium forms a white cottony mass on the surface of the host. The parasite draws its nourishment from the [...]