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Mycology

Fungi Notes

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20.1: Fungi What is a fungus? The Characteristics of Fungi Fungi are eukaryotes, use spores to reproduce and are heterotrophs. Fungi need moist, warm places to grow Most are multicellular, yeasts are unicellular Hyphae: branching threadlike tubes that make up the bodies of multicellular fungi Fuzzy looking molds have loosely tangled hyphae. The stalk and cap of mushrooms are closely packed hyphae. Mycelium: a complex network of branching hyphae may serve to anchor the fungus, invade food sources, form reproductive structures Cell walls of must fungi contain a complex carbohydrate called chitin Cross walls called septa divide hyphae into individual cells that contain one or more nuclei Pores in the septa let cytoplasm, organelles and nutrients flow throughout the fungus

Fungus Lecture

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Lecture 5 ? Kingdom of Fungi HW 1. Explain what a pseudohypha is. -A chain of yeast formed when buds remain attached in a row. 2. Explain what a ?dimorphic fungus? is. -It can take either form (yeast or hyphae), depending upon growth conditions, such as changing temperature. 3. What are mycoses? Fungal infections in the way the agent enters the body and the degree of tissue involvement. 4. What are the three most common sexual spores? -Zygospores, ascospores, and basidiospores 5. Give six types of asexual mold spores. -Arthrospore; Chlamydospore, Blastospore, phialospore, micro/macroconidium; porospores 6. What are zygospores?
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