File-003 - (usually multinuclear) and small (usually...

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BIO 119 McCague File-003 Classes of Fungi Class Asexual Spores Sexual Spores Mycelia Representative Genera Phycomycetes Endogenous (in sacs) Anatomy variable Nonseptate Rhizopus , Mucor , Watermolds Ascomycetes Exogenous (at ends or sides of hyphae) Ascospores, within sacs or asci Septate Neurospora , Penicillium , Aspergfllus , True yeasts Basidiomycetes Exogenous (at end or sides of hyphae) Basidiospores, on surface of basidium Septate Mushrooms, Rusts, Smuts Deuteromycetes (Fungi Imper- fecti) Exogenous (at ends or sides of hyphae) Absent Septate Most human pathogens Asexual Spores Formed by Fungi Conidia (Gr. Konis, “dust”) This term is sometimes used generically for all asexual spores, or sometimes more specifically for spores borne singly or in clusters along sides or at tips of hyphae of or of specialized hyphal branches (conidiophores). Highly diversified in shape, size, color, and septation. Large
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Unformatted text preview: (usually multinuclear) and small (usually uninuclear) conidia are called macroconidia and microconidia, respecitively. Arthrospores (Gr. Arthron, “joint”; spores, “seed”) Cylindrical cells formed by double septation of hyphae. Individual spores are released by fragmentation of hyphae, i.e. by disjunction. Blastospores (Gr. Blastos, “bud”, “shoot”) Buds that arise form yeasts and yeast- like cells. Chlamydospores (Gr. Chlamys, “mantle”) Thick-walled, round spores formed from terminal or intercalated hyphal cells. Sporangiospores (Gr. Angion, “vessel”) Spores within sac-like structures (sporangia) at ends of hyphae or of special hyphal branches (sporangiophores). Characteristically formed by species of Phycometes....
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This note was uploaded on 06/13/2011 for the course BIO 119 taught by Professor Stevendroho during the Spring '11 term at Moraine Valley Community College.

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