fungi the kingdom of fungi. what are fungi? eukaryotic heterotrophs cell walls made of chitin most...
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FungiThe Kingdom of Fungi
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What are Fungi?Eukaryotic
heterotrophsCell walls made
of chitinMost multicelluar
◦ Except yeastAbsorb nutrients
from decaying matter or bodies of hosts
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Structure of Fungi
Bodies of fungi are made of a thick mass of hyphae called a mycelium◦Hyphae- thin
filaments
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Reproduction in FungiAsexually
◦Budding- yeast◦Breaking off of cells or hyphae
◦Spores- conidia By mitosis
Sexually◦Hyphae grow together
◦Gametangia are formed
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Classifying Fungi
Sac Fungi◦Rhizoids- like roots
◦Stolons- like stems that run along the surface
Stolon
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Club FungiBasidium- spore bearing structureStipe- stalk
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Imperfect Fungi
No sexual reproductive phase observed
Penicillium notatum◦Grows on fruit◦Source of
antibiotic penicillin
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Fungi as DecomposersRecycle 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!
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Fungi as Parasites
Can cause serious plant and animal diseases even in humans!
Wheat rustCorn smutAthlete’s footRingworm
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LichensNot single
organismsSymbiotic
association between fungus and a photosynthetic organism
Resistant to cold and drought
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Mycorrhizae
Mutualistic fungi with plant roots
Allow host plant to absorb more nutrients and water