In this article we will discuss about the classification of lower fungi. The modern mycologists consider that the class Phycomycetes is not a natural group of closely related forms. Numerous new proposals for regrouping them are thus forthcoming. Sparrow (1958-59) suggested that the order Plasmodiophorales which includes the endoparasitic slime molds should be given the rank of a class Plasmodiophoromycetes [...]
In this article we will discuss about the evolution of thallus in lower fungi with the help of diagrams. In the simplest and primitive members, which are aquatic, there is no mycelium. The thallus in these forms is microscopic and unicellular. In Olpidium endogenum, it consists of a tiny mass of naked, uninucleate protoplast which enters the host cell, enlarges [...]
The following points highlight the three ways for accomplishment of plasmogamy in lower fungi. The ways are: 1. Planogametic Copulation 2. Gametangial Contact 3. Gametangial Copulation. Way # 1. Planogametic Copulation: It is characteristic of the primitive planogametic lower fungi (Chytridiomycetes and Plasmodiophoromycetes). In this kind of gametic union, one or both the gametes of a uniting pair are motile [...]