In this article we will discuss about the characteristics and classification of peronosporales. General Characteristics of Peronosporales: The order is represented by 12 genera and about 325 species. In habit they range from aquatic to the terrestrial ones through the species with amphibious way of life. Many of the terrestrial species are highly specialized obligate plant parasites which cause serious [...]
In this article we will discuss about the life cycle of saprolegnia with the help of suitable diagrams. Mycelium of Saprolegnia (Fig. 6.2 A): The mycelium is coenocytic and branched. During the vegetative phase it is composed of two kinds of hyphae: (i) Rhizoidal or intramatrical hyphae: These are short hyphae which penetrate the substratum. They anchor the mycelium and [...]
In this article we will discuss about the life cycle of achlya with the help of suitable diagrams. Mycelium in Achlya: It is in the form of a white, tangled mass consisting of branched hyphae growing in all directions. Some of the hyphae, which are short, penetrate the substratum. They anchor the mycelium and absorb nutrient materials. The hyphae are [...]