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Fungal EcologyFeeding - saprobes - feed on dead or living material - secretedigestive enzymes and absorb products of digestionsome are important decomposerscan digest lignin and cellulose of woodsome are parasitic on living organismsathlete’s foot, ringworm, corn smut, rustssome are predatory - some can anesthetize and consumeroundworms (our local oyster mushroom)some have mutualistic relationships with other organismslichen = fungus + green algafungus provides alga with some nutrientsneeded for photosynthesis - alga providescomplex organic nutrients to fungusmicorhizzal fungi - associate with plant roots andabsorb nutrients from soil to aid plant9