1 / 21

Kingdom Fungi

Kingdom Fungi. Where are fungi found?. Everywhere. air, water, soil people (athlete’s foot, yeast infection, ringworm) foods (bread-yeast, cheese, mushrooms). What are fungi?. Eukaryotic Heterotrophs - use extracellular digestion (excrete enzymes and absorb nutrients)

enoch
Download Presentation

Kingdom Fungi

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Kingdom Fungi

  2. Where are fungi found? Everywhere • air, water, soil • people (athlete’s foot, yeast infection, ringworm) • foods (bread-yeast, cheese, mushrooms)

  3. What are fungi? • Eukaryotic • Heterotrophs - use extracellular digestion (excrete enzymes and absorb nutrients) • Cell walls made of chitin • Some unicellular (ex. Yeast) • Most multicellular

  4. Fruiting body Hyphae Mycelium

  5. Structure of Fungi Hyphae: threadlike filaments (one-cell thick) like roots Some hyphae have cross walls.

  6. Hyphae form Mycelium Hyphae branch out to form mycelium, a network of filaments. HyphaeCross walls

  7. 3 feeding relationships • Decomposers - recycle nutrients • Parasitism - corn smut, mildews, wheat rust, yeast infections, athlete’s foot, ringworm • Mutualism - 2 examples

  8. 1. Mycorrhizae • Symbiosis b/t fungus & plant roots • Fungus covers roots, increase surface area, & allow plants to absorb vital nutrients • Fungi release enzyme to free nutrients in soil • Plant provides sugars, amino acids & oxygen to fungi

  9. Ex. Orchid seeds • Orchids have small seeds and need help to get started. The fungus 'feeds' the orchid seed and the orchid roots protect the fungus.

  10. 2. Lichens • Symbiosis b/t fungi & algae or cyanobacteria • Orange, green, black blotches seen on rocks, trees, & dry cold environments • Algae provide food by photosynthesis while fungi provides water & minerals Lichens on rocks

  11. Densely packed hyphae Layer of algae/ cyanobacteria Loosely packed hyphae Densely packed hyphae Lichen structure

  12. Asexual Reproduction • Fragmentation—occurs when hyphae break off & grow new mycelia • Budding—a fungal cell grows out & separates from parent cell (mitosis)

  13. Sexual Reproduction: Spores • Produce fruiting body – mushroom cap (spore-containing structure) • Protect spores from drying out Spores

  14. Spores dispersed by: wind, water, animals • Many spores produced

  15. Examples • Rhizopus - black bread mold

  16. Some important fungi • Morels & truffles – delicacies - can retail for $500/lb! • Yeasts – baking & brewing, Vaccine for Hepatitis B TRUFFLES MORELS YEAST

  17. More Examples… • Amanita – very poisonous • Shelf-bracket – parasite on trees

  18. Penicillium mold Used to make antibiotic penicillin

  19. Ecological Importance • Recycle nutrients, decomposers • Mychorrizae – see notes • Lichens – see notes STOP

More Related