Chapter 26 Overview on Fungi- are found wherever moisture, the appropriate temperature and suitable organic nutrients are present; exist primarily as filamentous hyphae; mycelium = a mass of hyphae; fungi secrete exoenzymes to digest insoluble matter, then absorb the solubilized nutrients; primarily terrestrial; few aquatic species; many are pathogenic in plants or animals; some form associations; mycorrhizae – associations with plant roots; lichens – associations with algae or cyanobacteria Beneficial impact – decomposers; industrial fermentations; fermented foods and beverages; steroids, antibiotics and other drugs; research; model eucaryotic organisms Detrimental impact- major cause of plant diseases; cause of many animal, including human, diseases Thallus- body or vegetative structure of a fungus; cell walls usually composed of chitin Yeasts- unicellular fungi; reproduce asexually, often by budding; reproduce sexually by formation of spores Molds- filamentous fungi; may be coenocytic (no cross walls) or have septa (cross
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This note was uploaded on 04/20/2008 for the course BIO 301 taught by Professor Tryzna during the Spring '08 term at Marshall.