BY 108 Chapter Notes - Chapter 27: Parasitism, Chytridiomycota, Ascus
Document Summary
Major fungi groups - chytridiomycota, zygomycota, basidiomycota, asomycota. Proves that fungi/animals first originated from water. Zygomycota - includes bread molds, glomales (helps terrestrial plants) Zygosporangium - area where haploid nuclei fuse, has a thick coat to help fungus survive in bad conditions. Basidiomycota - includes mushrooms, toadstools, rusts, smuts. Primary mycelium - made of monokaryotic hyphae. Secondary mycelium - made of dikaryotic hyphae. Basidiocarps - mushroom tops, consists of only secondary mycelium. Ascomycota - contains 75% of known fungi. Meiosis occurs immediately after diploid cell forms. 8 haploid ascospores form from diploid cell. Ascus can burst >> spreads spores out very far. Advertising inread invented by teads lichens - symbiosis between fungus and photosynthetic organism fungus sometimes feeds off photosynthetic host (but usually mutualism) fungus penetrates cell wall, not cell membrane. Photosynthetic organism found between the filaments in the fungus. Mycorrhizae - symbiosis between fungus and plant roots fungus helps plants absorb nutrients from the soil.