In this article we will discuss about reproduction of fungi in phylum oomycetes. Reproduction in Saprolegnia: Asexual Reproduction: It is accomplished by zoospores. Cylindrical zoosporangia develop at the tips of hyphae which produce numerous biflagellate zoospores. When mature, they can be seen jostling one another within the zoosporangium. The apex of the zoosporangium suddenly breaks releasing the zoospores. At first, [...]
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 [...]