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Classification of Fungi. Biology 112. Fungi are organized according to their structure and function of reproduction This makes them distinct from any other kingdom. How are fungi organized?. Phylum Zygomycota ( zygomycetes ) Have life cycles that includes a zygospore
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Classification of Fungi Biology 112
Fungi are organized according to their structure and function of reproduction • This makes them distinct from any other kingdom How are fungi organized?
Phylum Zygomycota (zygomycetes) • Have life cycles that includes a zygospore • A resting spore that contains zygotes • Formed by the sexual phase of the mold’s life cycle • Hyphae change in their structure over time • Reproduction occurs between different mating types that fuse and produce a gametangia • The zygote may remain dormant until favorable environmental conditions occur • New combinations of genetic variation occurs Common Molds
Hyphae include: • Those that break the surface, called rhizoids • Those that run along the surface, called stolons Bread Mold (Rhizopusstolonifer)
Phylum Ascomycota • Contain an ascus • a reproductive structure that contains spores • Largest phylum in the fungi kingdom • Includes asexual and sexual reproduction • Asexual: tiny spores called conidia form at the tips of specialized hyphae • Sexual: two different mating types form within the ascus of the fruiting body and combine Sac Fungi
Unicellular • Dry yeast are ascospores (fertilized zygotes) • Reproduce asexually by budding Yeasts
Phylum Basidiomycota • Contain a reproductive structure that resembles a club, or a basidiospore • Found on the gills on the underside of mushroom caps • Reproduction results in a fruiting body that produces spores which begins as a mass of hyphae referred to as a button Club Fungi
All club fungi are decomposers • Some may be parasites of plants and animals • Some are poisonous Mushrooms/Club Fungi
Those fungi discovered by scientists who’s reproductive cycle is unknown • Most famous example is penicillium Imperfect Fungi