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Kingdom Fungi

Kingdom Fungi. Distinguishing Characteristics. Eukaryotes Nuclei in cells Multicellular Cell walls (chitin) Heterotrophs Sessile Sexual & Asexual Reproduction. Distinguishing Characteristics. Absorbs food through hyphae Largest living thing Mycelia – masses of hypha

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Kingdom Fungi

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  1. Kingdom Fungi

  2. Distinguishing Characteristics • Eukaryotes • Nuclei in cells • Multicellular • Cell walls (chitin) • Heterotrophs • Sessile • Sexual & Asexual Reproduction

  3. Distinguishing Characteristics • Absorbs food through hyphae • Largest living thing • Mycelia– masses of hypha • Chitin walls (chitin is same material found in exoskeletons of animals)

  4. Alternation of Generation • Sexual • Hyphae “mate” results in 2 nucleus cell called dikaryote. • Cells fuse and you get cell with twice the genetic information • Undergoes meiosis to split back to normal • Spores result  germination and new hyphae • Asexual • Hyphae produce asexual fruiting body that produces spores

  5. AnimaliaChytridiomycotaZygomycotaAscomycotaBasidiomycota

  6. Chytridiomycota • Flagella in one stage of life • Live in water • Cell walls • unseparatedHyphae

  7. Chytridiomycota • Chytridiomycota • Primitive aquatic fungi. They are characterized by having gametes that are motile by means of flagella. • 1000 species

  8. Zygomycota • Resistant dikaryotic spores • Spores live for months or years… • Bred molds…

  9. Zygomycota (Coenocytic Fungi) • Zygomycota • Form sexual spores called zygospores. They form when the nuclei at the ends of two hyphae fuse together in a process of fertilization to form a zygote. Fungus growing on moss, to the right is a magnified view.

  10. Zygomycota:Black Bread Mold • Rhizopus nigricans.

  11. Ascomycota • “Sack” fungi • Reproductive sack forms where sexual reproduction happens

  12. Ascomycota:Cup Fungus • Ascomycetes • Their sexual spores (ascospores) are enclosed in tube-like sacs known as asci. • Neurospora crassa is an ascomycete mold that was important in studies of genetic linkage. Orange fairy Asci With lichen surrounding Scarlet fungus

  13. Basisiomycota • Produces “clubs” mushrooms that are swollen masses of dikaryotic cells.

  14. Basidiomycota: Club Fungus puffballs • Basidiomycetes • Their sexual spores, or basidiospores, are formed on complex fruiting body structures called basidia. Included in this class are some of the most complex fungi, including mushrooms and puffballs. Coral fungus leucocoprinus fragilissimus

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