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Used to be thought they were plants Biology I – Mr. Fuentes
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List the characteristics of fungi. Recognize different types of fungi. How they obtain nutrients. Describe diseases caused by fungi. Describe their importance in industry. Fungi and food. Objectives
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What do you see? What is the significance?
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List the characteristics of fungi Do this in pairs.
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List the characteristics of fungi Eukaryotic, non photosynthetic, most are multicellular autotrophs.
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Different types MoldsYeasts
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Different types Molds Tangled mass of filaments. Multicellular hyphae. The dusty texture is caused by spores.
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Different types Yeasts Unicellular fungi. measuring 3–4 µm in diameter, although some yeasts can reach over 40 µm.
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Different nutrition types Absorb organic matter from their environment. Secrete digestive enzymes and absorb throw the cell wall. Most are saprophytic. What's the importance?
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Saprobes Entoloma hochstetteri, the ‘blue toadstool’, widespread in New Zealand’s native forests.
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Parasites Ustilago maydis is a pathogenic plant fungus that causes smut disease on maize.
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Predators Arthrobotrys conoides parasite of the ringworm.
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Fungi causing diseases Allergies by mold spores. Infections on skin, hair, nails and tissues. Infections in internal organs by spores. Histoplasmosis. Poisonous mushrooms.
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Ringworm
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Athlete’s foot
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Candidiasis
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Fungi in industry Production of antibiotics like penicillin or cephalosporin, cortisone, ethanol and used in genetic engineering.
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Penicillium Cephalosporium Rhizopus Saccharomyces
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Fungi in food
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Saccharomyces Agaricus Portabella Shiitake Truffles
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Molds very close to us
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Interesting fact 100 are human pathogens. Out of 100,000 known species: 1,000 are plant pathogens.
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