1. Fungi The decomposers

2. Ecological Importance Decomposition Symbiosis with plants (mycorrhizae)

3. Economic Importance FermentationFood

4. Economic Importance: Antibiotics

5. Zygomycota Ascomycota Basidiomycota

6. Characteristcs of fungi Feed by absorption Most are multicellular Thread-like filaments called hyphae Hyphae organized into mycelium Asexual and sexual reproduction Chitin cell walls

9. Fusion of cytoplasm Heterokaryotic stage Fusion of nuclei Diploid stage Haploid stage

10. Zygomycota Zygote fungi Rhizopus stolonifer Pilobolus crystallinus

12. Ascomycota: Sac fungi Peziza Morels Ergot Penicillium

15. Ergot alkaloids Responsible for Salem witch trials? Ergotamine is a precursor to LSD

16. Basidiomycota: Club fungi

17. Pileus Stipe Gills

20. Fungi imperfecti (once called Deuteromycota) Imperfect or asexual fungi Reproduce only vegetatively (asexually) Many human diseases are imperfect fungi Athlete’s foot, ringworm, candida “yeast” infections A fungi from this group is used to make Roquefort and blue cheeses

21. Lichen a symbiotic relationship between fungi and algae or cyanobacteria (commonly Nostoc)