In this article we will discuss about the life cycle of phytophthora with the help of suitable diagrams. Mycelium of Phytophthora: It is profusely branched and consists of aseptate, hyaline, profusely branched, coenocytic, moderately thick hyphae about 4-8µ in diameter. The hyphal wall is approximately 0.1µ thick. It is electron transparent except for a thin, electron dense outer surface. Glucans [...]
In this article we will discuss about:- 1. Occurrence of Phytophthora 2. Symptoms of Phytophthora 3. Predisposing Causes 4. Control of the Disease 5. Salient Features 6. Economic Importance. Contents: Occurrence of Phytophthora Symptoms of Phytophthora Predisposing Causes of Phytophthora Control of the Disease Caused by Phytophthora Salient Features of Phytophthora Economic Importance of Phytophthora 1. Occurrence of Phytophthora: The [...]
In this article we will discuss about the asexual and sexual reproductive structure of phytophthora. Asexual Reproduction of Phytophthora: 1. Asexual reproduction takes place by conidiosporangia developed on branched conidiophores or sporangiophores. 2. Sporangiophores are the branched hyphae which come out through the stomata of the host leaf. 3. At the tip of the branches of sporangiophores develop sporangia (Fig. [...]