In this article we will discuss about:- 1. Genus of Cercospora 2. Mycelium of Cercospora 3. Reproduction. Genus of Cercospora: The form-genus Cercospora includes about 3,800 form-species. Majority of them are plant pathogens which cause leaf spot diseases of higher plants of economic value (Fig. 16.11 A). Commonly the leaf spot disease is called the tikka disease. C. personata and [...]
In this article we will discuss about:- 1. Introduction to Parasexual Cycle in Fungi 2. Steps involved in Parasexual Cycle 3. Significance. Introduction to Parasexual Cycle in Fungi: In some fungi, true sexual cycle comprising of nuclear fusion and meiosis is absent. These fungi derive the benefits of sexuality through a cycle known as Parasexual Cycle. The Parasexual Cycle is [...]
In this article we will discuss about the presence of sex hormones in achlya. It was de Bary (1881) who first reported the presence of sex hormones in dioecious species of Achlya. In 1908, Kaufmann supported the contention of de Bary on the basis of his observations on Saprolegnia hypogyna. According to Kaufmann, the development of antheridial hyphae is stimulated [...]