In this article we will discuss about:- 1. Heterothallism in Fungi 2. Heterokaryosis in Fungi 3. Parasexuality. Heterothallism in Fungi: A. F. Blakeslee, an American Geneticist, in 1904 made an important observation with Mucor, which resulted in the discovery of Heterothallism. Blakeslee observed, that while some isolates of Mucor formed sporangia as well as zygospores (e.g., M. tenuis), some others [...]
Under agricultural field conditions, crops do not have roots, they have mycorrhiza. Mycorrhizas (sing, mycorrhiza), discovered by the German botanist, Frank in 1885, are structures formed by association of fungi and roots of plants. Mycorrhizas are classified into three categories- ectotophic, endotrophic and ectendotrophic. In ectotrophic mycorrhiza, the fungus forms a mantle or hyphal sheath around the rootlets and also [...]
Here is a list of eight major plant diseases caused by fungi. 1. Early Blight of Potato: Pathogen Alternaria Solani: The disease is quite common in India, and occurs on about three week old plants. Since this blight occurs earlier than the 'late blight' of potato (caused by Phytophthora infestans), it is called 'early blight.' Symptoms: Well-defined leaf spots appear [...]