24_Rizzo_Fungi_lecture_3_outline

24_Rizzo_Fungi_lecture_3_outline - Lecture 24 outline Fungi...

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Lecture 24 outline Fungi lecture 3 Animals that grow fungi Active cultivation of fungi for ‘agriculture’ o Attine ants (leaf-cutter ants) o Termites o Ambrosia beetles o snails Example: Attine ants (leaf-cutter ants) o Found in New World tropics o Cut vegetation and return to nest o Use vegetation to cultivate fungi in underground nests o Fungi are primary food source for ant larvae; secondary food source for adults o Massive nests; division of labor among ants to cultivate fungi; similar to human agriculture o Ants ‘prune’ fungal hyphae to causing swollen tips known as gongylidia, which are fed to the larvae. o Fungus gardening ants are a monophyletic group o Ants cultivate fungi from several different clades of Basidiomycota o Co-evolution among ants and fungi in some cases; lineage switching in other cases Saprobes (decomposers) • break down dead organic matter • important in the carbon cycle • fungi decompose many substrates o easy substrates (many fungi can decompose these)
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24_Rizzo_Fungi_lecture_3_outline - Lecture 24 outline Fungi...

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