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Unformatted text preview: ribosomal RNA sequences suggest that fungi are not only an independent evolutionary line, but are more closely related to animals! - drugs, alcohol, medicines, death, economic losses in the billions of dollars, failed invasion of Turkey by Peter the Great, important symbiotic relationships, etc. B. Characteristics 1. composed of hyphae (mass of hyphae = a mycelium) 2. hyphae of most species are separated by septa 3. hyphae lacking septa are coenocytic 4. cell walls of fungi contain chitin 5. fungi are heterotrophic and obtain their food by absorption (exozymes) 6. fungi have a zygotic life cycle that includes separate steps of plasmogamy and karyogamy C. The fungal phyla 1. Chytridiomycota 2. Glomeromycota 3. Zygomycota 4. Ascomycota 5. Basidiomycota IV. Phylum Chytridiomycota V. Phylum Glomeromycota - form symbiotic associations with 80% of plants ( endomycorrhizae ) VI. Digression: Life cycles VII. Phylum Zygomycota...
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- Fall '10