Chapter 20

Chapter 20 - Chapter 20 Eukaryotic Diversity Phylogeny of...

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Unformatted text preview: Chapter 20- Eukaryotic Diversity Phylogeny of Eukaryotes Eukaryotes have greatest diversity of size Groups containing microscopic eukaryotes Fungi Algae Protozoa Fungi Cell walls contain chitin Non-motile Most grow hyphae Mycelium- branched mass of hyphae Absorptive heterotrophs Fungi—Yeasts unicellular fungi Reproduce via budding Fungi—Chytrids Motile (flagella) reproductive zoospores Associations with animals Symbiont in bovine rumen Frog pathogen: has caused many frogs to die in central and south America Fungi—Zygomycetes Non-motile sporangiospores (gametes) Spread via air or water currents fuse to form zygote called zygospore Rhizopus-bread mold Arbuscular mycorrhizae Mutualistic association with plant roots Increase root absorption Fungi—Ascomycetes Fruiting bodies form asci containing ascospores Neurospora – bread mold Penicillium – first antibioitic Aspergillis – can cause respiratory infections, especially in those who are immunocompromised Candida- can be normal flora or cause infection...
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Chapter 20 - Chapter 20 Eukaryotic Diversity Phylogeny of...

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