FUNGI - CHAPTER 20- pg. 575

Bozeman Biology - Fungi 9:13 minutes

Alexander Fleming - British Scientist, 1928 First scientist to discover that fungi killed bacteria.

Characteristics of Fungi Found everywhere Grow best in moist, dark, warm places Most are multicellular Heterotrophs Extracellular digestion Absorptive heterotrophs Field (edible) mushrooms Poisonous mushrooms

Largest of all living organisms; hyphae can grow for miles.

Structures of Fungi Chitin - gives cell walls strength & flexibility Spore - reproductive structure Hyphae - threadlike filaments (absorb food) Mycelium - a network of hyphae

Spores Develop into new fungi One fungus can produce 1 trillion spores Carried by wind, water, and animals

Adaptations in Fungi Saprophytes - decomposers of earth’s organic wastes Parasites - cause disease (Haustoria - special hyphae) Thrush Athlete’s foot Ringworm Yeast infections

Ringworm on human flesh

Reproduction in Fungi Sexual Asexual Fragmentation Budding (ex. yeast) Producing spores

Budding (yeast)

Mushroom farm - edible mushrooms

WORLD’S DEADLIEST FUNGI

Mycorrhizae A symbiotic relationship between a fungus & a plant (ex. Orchid) The hyphae increase the absorptive surface of the roots The plant gives the fungus organic nutrients % of trees & plants have mycorrhizae

Lichens A symbiotic relationship between a fungus and a green algae or cyanobacteria The fungus provides the habitat, water, & minerals The algae or cyanobacteria provides the food

CRUSTOSE (flat) FOLIOSE (“foliage”) FRUTICOSE (grow upright)

10 Amazing Facts About Fungi! wweymhAuXG8