How do fungi obtain nutrients? How are fungal groups characterized? Kingdom Fungi How do fungi obtain nutrients? How are fungal groups characterized?

Fungi Anatomy Cell walls of chitin Mostly multicellular (yeasts are an exception) Made of hyphae Hyphae group together into a mycelium

Fungi Nutrition Fungi are decomposers or parasites They absorb their food externally Hyphae release enzymes that break food down Nutrients are absorbed through cell walls

Groups of Fungi Primitive Fungi Sac Fungi Spores have flagella Decomposers or parasites Sac Fungi Form a sac (ascus) that contains spores Examples: Yeast (only unicellular fungus) Penicillium Morels and truffles

Groups of Fungi Bread Molds Club Fungi Mostly decomposers Examples: All molds Mychorrhizae Club Fungi Fruiting bodies are club-shaped Mushrooms Puffballs Rusts and smuts (parasites)

Rusts and Smuts

Fungi Reproduction Unicellular fungi Asexually – fission or budding Sexually – produce spores in ascus by meiosis Multicellular fungi – reproduction depends on type of fungi