In this article we will discuss about:- 1. Genus of Alternaria 2. Mycelium of Alternaria 3. Reproduction. Genus of Alternaria: The form-genus Alternaria occurs universally. It has several form-species. Many of these are encountered with as contaminants in laboratory media and on petri-dish cultures. In nature the alternarias grow mostly as saprophytes on plant debris and dying plant parts and [...]
The below mentioned article provides short note on colletotrichum. Mycelium of Colletotrichum: It is internal, septate and branched. The slender hyphae are both intercellular and intracellular. They are usually hyaline when young. With age the hyphal wall becomes darker and thicker and the cytoplasm, which contains droplets of oil, becomes denser. The thick-walled hypha finally collect, intertwine and become compacted [...]
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 [...]