Introduction to Fungi - Dikaryon Special type of...

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Introduction to Fungi: Evolution, Characteristics and Life Cycle BIOL 1407
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Fungi http://www.poetv.c Photo Credit: Field Biology Student, Enchanted Rock Field Trip 2005
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Characteristics of Fungi Absorptive heterotrophs Cell walls made of chitin No flagella (most) Photo Credit: M. Hirsch, BIOL 1407 Bastrop Field Trip 2004
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Fungal Hyphae Hyphae Thread of cells One cell thick High surface area to volume ratio
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Fungal Hyphae Hyphae Absorb water, ions, nutrients Gas exchange Waste disposal
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Hyphal Types Septate Coenocytic
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Fungal Body Mycelium Loosely woven mat of hyphae Feeding structure
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Reproductive Structures Made of hyphae Different shapes for different fungal groups
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Reproductive Structures Make spores, either by mitosis or meiosis Some are called “fruiting bodies”
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Heterokaryon Formed after plasmogamy n + n Unfused nuclei from both parents
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Unformatted text preview: Dikaryon Special type of heterokaryon Long-lasting As cells divide, cells retain n + n Fungal Lifestyles Saprobes = Decomposers Fungal Lifestyles Parasites Fungal Lifestyles Predators Fungal Lifestyles Mutualists: Mycorrhizae Fungal Lifestyles Mutualists: Lichens Photo Credit: Field Biology Student, 360 Overlook 2005 Types of Lichens Crustose Types of Lichens Foliose Photo Credit: Field Biology Student, 360 Overlook 2005 Types of Lichens Fruticose Photo Credit: M. Hirsch, BIOL 1407 Bastrop Field Trip 2004 Evolution of Fungi Earliest fossil fungi Fungal spores 460 million years old Opisthokonts Sister taxon: Nucleariids The End Unless otherwise specified, all images in this presentation came from: Campbell, et al. 2008. Biology, 8 th ed. Pearson Benjamin Cummings....
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This note was uploaded on 10/02/2011 for the course BIOL 1407 taught by Professor Lisagloyna during the Spring '09 term at Austin Community College.

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Introduction to Fungi - Dikaryon Special type of...

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