Lecture 13, Ch. 31

Lecture 13, Ch. 31 - asci: sexual spores conidia: asexual...

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Lecture #13 Lecture #13 Date ______ Date ______ Chapter 31 ~ Fungi
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Fungi Fungi Heterotrophic by absorption (exoenzymes) Decomposers (saprobes), parasites, mutualistic symbionts (lichens) Hyphae: body filaments •septate (cross walls) •coenocytic (no cross walls) Mycelium: network of hyphae Chitin cell walls (polysaccharide)
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Fungus Life Cycle Fungus Life Cycle QuickTime and a Cinepak decompressor are needed to see this picture.
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Fungi Diversity, I Fungi Diversity, I Phy: Chytridiomycota •aquatic fungi; chytrids •lineage closest to protists (flagella) Phy: Zygomycota Rhizopus (food mold) •mycorrhizae: mutualistic with plant roots •zygosporangia: resistant structure (freezing and drying)
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Fungi Diversity, II Fungi Diversity, II Phy.: Ascomycota •sac fungi • yeasts, truffles, morels, Sordaria
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Unformatted text preview: asci: sexual spores conidia: asexual spores Phy.: Basidiomycota club fungus mushrooms, puffballs, shelf fungus, rusts basidiocarps: produce sexual spores Specialized Lifestyles, I Specialized Lifestyles, I Molds only the asexual stage (asexual spores) Penicillium (antibiotic, cheese) Yeasts unicellular, asexual budding Saccharomyces (bread, alcohol) Specialized Lifestyles, II Specialized Lifestyles, II Lichens symbiotic association held in a hyphae mesh alga provides food, fungus provides physical environment pioneer organisms air pollution detection Mycorrhizae root and fungi mutualism found in 95% of vascular plants exchange of organic minerals increases absorptive surface of roots...
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Lecture 13, Ch. 31 - asci: sexual spores conidia: asexual...

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