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 [...]
The following points highlight the seven main evolutionary tendencies of Ascomycetes. (i) The gradual transition from the aquatic forms to purely terrestrial species noticeable in the Phycomycetes culminates in the Ascomycetes which are fungi of drier, terrestrial habitats completely lacking motile cells in their life cycle. (ii) The tendency towards increased septation of hyphae in the advanced Zygomycetes becomes firmly [...]