In this article we will discuss about the asexual and sexual reproductive structure of albugo. Asexual Reproduction of Albugo: 1. It takes place by conidia or conidiosporangia. They develop on conidiophore or conidiosporan- giophore (Fig. 71). 2. Mycelium below the epidermis gives off many erect, short, unbranched, club-shaped hyphae called conidiophores. 3. Conidiophores lie parallel to one another and perpendicular [...]
In this article we will discuss about the morphology and vegetative structures of cercospora. Morphology of Cercospora: Cercospora: Common Species: Cercospora arachidicola, C. beticola, C. nicotianae, C. personata and C. apii. Occurrence: It commonly occurs parasitically on many plants of economic importance, and causes the leaf spot disease on arhar, cotton, rice, chillies, Calotropis, Arachis hypogaea (Fig. 114) etc. Vegetative [...]
In this article we will discuss about the asexual and sexual reproductive structures of aspergillus. Asexual Reproduction of Aspergillus: 1. It takes place by the formation of conidia on conidiophores. 2. From the prostrate somatic mycelium arise many erect, thick-walled, aseptate and unbranched hyphae called conidiophores. 3. Thick-walled cell, from which a conidiophore arises, is termed as foot cell. 4. [...]