In this article we will discuss about the life cycle and the spore stage of rust fungi. Some of the rusts need two different unrelated hosts to complete their life cycles. These are known as Heteroecious (Hetero = different; cion = Home) rusts and the phenomenon exhibited by them is called Heteroecism. An example of heteroecious rust is Puccinia graminis [...]
In this article we will discuss about the life cycle of puccinia graminis with the help of suitable diagrams. Dikaryophase in the Life Cycle of Puccinia: This phase in the life cycle of Puccinia is confined to the primary host which is wheat. It consists of dikaryotic mycelium and two spore stages, uredineal and telial. 1. Dikaryotic Mycelium: It is [...]
In this article we will discuss about the similarities and dissimilarities between rusts and smuts. Similarities between Rusts and Smuts: (i) The mycelium in both passes through two stages, the monokaryotic (primary) stage and the dikaryotic (secondary) stage. (ii) The dikaryotic mycelium is of greater importance. It is usually perennial in both. It is intercellular and obtains nourishment by means [...]