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Kingdom: Fungi

Domain Bacteria. Domain Archaea. Domain Eukarya. Common ancestor. Kingdom: Fungi. Domain Eukarya. General characteristics. Classification criteria _____________________ _____________________ feed by absorption mostly multicellular except unicellular yeasts _____________________

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Kingdom: Fungi

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  1. Domain Bacteria Domain Archaea Domain Eukarya Common ancestor Kingdom: Fungi Domain Eukarya

  2. General characteristics • Classification criteria • _____________________ • _____________________ • feed by absorption • mostly multicellular • except unicellular yeasts • _____________________ • ____________________ • rigid polysaccharide • sexual & asexual reproduction

  3. Fungal Structure • Fungal body • mycelium • thread-like cells • hyphae • Cells • multiple nuclei • Cell wall • chitin • just like crab shells

  4. Internal structure chitin cell wall septum • Eukaryotic cells • long, thread-like cells • filamentous • incomplete divisions between cells • septum • multiple nuclei pore nuclei Aaaaah,structure–functionrelationship!

  5. Modes of Nutrition • Heterotrophic • secrete digestive enzymes • feed by absorption • parasites • feeding on living creatures • predators • paralyzing prey • decomposer • breakdown dead remains fungal hypha plantcell wall plant cellmembrane plant cell Fungi live INtheir food! It’s like you living in Chocolate cake!

  6. Fungal Diversity Zygomycota Ascomycota Basidiomycota Chytridiomycota Fungi

  7. Ecological Roles • ___________________ • recycle nutrients • Symbiotic Relationships • _____________________ • fungi + algae • pioneer species in ecosystems • makes soil from bare rock • _____________________ • fungi + plants • enables plants to absorb more water Lichens are fungi that have discovered agriculture!

  8. Mycorrhizae • Critical role in plant growth • extends water absorption of roots withoutmycorrhizae withmycorrhizae Endomycorrhiza Ectomycorrhiza

  9. Reproduction • Asexual • budding in yeast • Sexual • spores • spread by wind • joining of + & – haploid spores haploidspores

  10. Zygomycete (Bread Mold) Life Cycle spores(haploid) mating strain hypha sporangium MEIOSIS mating strain (2n)diploid (n)haploid FUSION of + and – gametangia

  11. Basidiomycete Life Cycle gills lined with basidia fruiting body basidium (n + n)dikaryotic 2n (diploid) (n)haploid zygote MEIOSIS strain spores FUSION of and hyphae strain

  12. Fairy Rings

  13. The FIRST Antibiotics

  14. Any Questions??

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