The Fungus Amongus
Overview of Kingdom Fungi <ul><li>Eukaryotic, heterotrophic, multicellular  </li></ul><ul><li>Most are microscopic molds o...
Molds and Yeasts
Obtaining Nutrients <ul><li>Absorb nutrients from their environment </li></ul><ul><li>Secrete enzymes into food </li></ul>...
Structure <ul><li>Hyphae - chitin containing filaments distinguish fungi from plants </li></ul>
Reproduction <ul><li>Asexually  </li></ul><ul><li>Spores - modified cells on hyphae </li></ul><ul><li>Fragmentation - hyph...
Adaptive Advantage!
Classification <ul><li>Fungi are classified in 3 phyla </li></ul><ul><li>Zygomycota, Basidiomycota, and Ascomycota </li></ul>
Phylum Zygomycota <ul><li>Coenocytic hyphae - lack septa (dividing walls) </li></ul><ul><li>Reproduce by forming spores an...
Mucor  and  Rhizopus
Phylum Basidiomycota <ul><li>Spetate hyphae - contain dividing walls </li></ul><ul><li>Asexual reproduction is rare </li><...
Puccinia  and  Amanita
Phylum Ascomycota <ul><li>Septate or unicellular hyphae </li></ul><ul><li>Form conidia spores, buds(asexual) </li></ul><ul...
Symbiosis <ul><li>Mycorrhizae - form along root systems of plants and absorb sugars while delivering nitrogen to plants </...
Fungi and Humans <ul><li>Fungal diseases: athletes foot, ringworm, yeast infections, jock itch </li></ul><ul><li>Result fr...
Fungi and Humans <ul><li>Many fungi are a valuable food source or beneficial in medicine/food production (Penicillin) </li...
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Fungus

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Fungus

  1. 1. The Fungus Amongus
  2. 2. Overview of Kingdom Fungi <ul><li>Eukaryotic, heterotrophic, multicellular </li></ul><ul><li>Most are microscopic molds or yeasts </li></ul><ul><li>Molds - tangled masses of filaments of cells </li></ul><ul><li>Yeasts - unicellular fungi resembling bacteria </li></ul><ul><li>The study of fungi is known as mycology </li></ul>
  3. 3. Molds and Yeasts
  4. 4. Obtaining Nutrients <ul><li>Absorb nutrients from their environment </li></ul><ul><li>Secrete enzymes into food </li></ul><ul><li>Saprophytic - live on organic compounds absorbed from dead organisms </li></ul>
  5. 5. Structure <ul><li>Hyphae - chitin containing filaments distinguish fungi from plants </li></ul>
  6. 6. Reproduction <ul><li>Asexually </li></ul><ul><li>Spores - modified cells on hyphae </li></ul><ul><li>Fragmentation - hyphae dry and scatter </li></ul><ul><li>Budding - part of yeast cell pinches off and forms new cell </li></ul><ul><li>Sexually - fungi occur not in male and female, but rather in minus or plus </li></ul><ul><li>Minus and plus fungi can fuse hyphae (conjugation) and produce genetically diverse spores </li></ul>
  7. 7. Adaptive Advantage!
  8. 8. Classification <ul><li>Fungi are classified in 3 phyla </li></ul><ul><li>Zygomycota, Basidiomycota, and Ascomycota </li></ul>
  9. 9. Phylum Zygomycota <ul><li>Coenocytic hyphae - lack septa (dividing walls) </li></ul><ul><li>Reproduce by forming spores and conjugating </li></ul><ul><li>Examples: Mucor (soil mold) , Rhizopus (bread/veggie mold) </li></ul>
  10. 10. Mucor and Rhizopus
  11. 11. Phylum Basidiomycota <ul><li>Spetate hyphae - contain dividing walls </li></ul><ul><li>Asexual reproduction is rare </li></ul><ul><li>Sexually by producing basidiospores (from fruiting body) </li></ul><ul><li>Examples: Puccinia (plant rust), Amanita (shrooms) </li></ul>
  12. 12. Puccinia and Amanita
  13. 13. Phylum Ascomycota <ul><li>Septate or unicellular hyphae </li></ul><ul><li>Form conidia spores, buds(asexual) </li></ul><ul><li>Sexually by producing ascospores </li></ul><ul><li>Examples: yeasts, morels </li></ul>
  14. 14. Symbiosis <ul><li>Mycorrhizae - form along root systems of plants and absorb sugars while delivering nitrogen to plants </li></ul><ul><li>Lichens - fungus/plant structure found on rocks, fungus dissolves rock for nutrients </li></ul>
  15. 15. Fungi and Humans <ul><li>Fungal diseases: athletes foot, ringworm, yeast infections, jock itch </li></ul><ul><li>Result from a fungal attack on tissue </li></ul><ul><li>Result in itching, burning, discharge </li></ul>
  16. 16. Fungi and Humans <ul><li>Many fungi are a valuable food source or beneficial in medicine/food production (Penicillin) </li></ul>

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