1. Fungi The Kingdom of Fungi

2. What are Fungi? Eukaryotic heterotrophs Cell walls made of chitin Most multicelluar ◦ Except yeast Absorb nutrients from decaying matter or bodies of hosts

3. Structure of Fungi Bodies of fungi are made of a thick mass of hyphae called a mycelium ◦ Hyphae- thin filaments

5. Reproduction in Fungi Asexually ◦ Budding- yeast ◦ Breaking off of cells or hyphae ◦ Spores- conidia  By mitosis Sexually ◦ Hyphae grow together ◦ Gametangia are formed

6. Classifying Fungi Sac Fungi ◦ Rhizoids- like roots ◦ Stolons- like stems that run along the surface Stolon

7. Club Fungi Basidium- spore bearing structure Stipe- stalk

8. Imperfect Fungi No sexual reproductive phase observed Penicillium notatum ◦ Grows on fruit ◦ Source of antibiotic penicillin

9. Fungi as Decomposers Recycle nutrients by breaking down the bodies and wastes of other animals Can you imagine a world without decomposers? Without decay, nutrients in dead organisms would be lost forever!

10. Fungi as Parasites Can cause serious plant and animal diseases even in humans! Wheat rust Corn smut Athlete’s foot Ringworm

11. Lichens Not single organisms Symbiotic association between fungus and a photosynthetic organism Resistant to cold and drought

12. Mycorrhizae Mutualistic fungi with plant roots Allow host plant to absorb more nutrients and water