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Fungi- Chapter 14.

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Presentation on theme: "Fungi- Chapter 14."— Presentation transcript:

1 Fungi- Chapter 14



4 Fungi Eukaryotic Unicellular and multicellular
Most are composed of hyphae (fungal filaments) Nuclei occur in continuous mycelium Heterotrophic absorbers Cell wall present and predominantly made of chitin Reproduction is asexual and sexual Life cycles are variable Numbers- ~100,000 species described Habitat- ubiquitous, but primarily terrestrial Size- microscopic and macroscopic Storage product- glycogen

5 Phylum Cryptomycota Unikonts Lack chitin ~1000 species
Habitat- Soil, freshwater, and marine Example- Rozella.

6 Phylum Chytridiomycota
Aseptate. ~800 species Habitat Soil from desert, ditches, and banks of ponds and streams, rumen of large mammals Motile zoospores and gametes with a single whiplash flagellum Example- Allomyces Sexual reproduction involves the formation of a sporophyte Asexual by zoospores


8 Phylum Microsporidia Spore forming unicellular animal parasites
~1500 species Lack mitochondria, golgi, and peroxisomes Reproduce by forming spores that shoot polar tubes into host cells Example- Microsporidium

9 Phylum Glomeromycota Arbuscular endomycorrhizae 200 species so far
Occur in about 80% of vascular plants Aseptate, coenocytic Asexual, large multinucleate spores Example- Glomus

10 Phylum Zygomycota Aseptate ~1000 species Habitat Nonmotile.
Plant and animal tissue in soil, some are parasitic on plants, insects, and small soil animals Nonmotile. Example- Rhizopus stolonifer (common bread mold) Sexual reproduction involves the formation of a zygosporangium Asexual by nonmotile spores



13 Phylum Ascomycota Septate ~32,000 species Habitat Nonmotile
Leaves, wood, plant fruit. Nonmotile Examples- Neurospora (powdery mildew), Morchella (morel), Saccharomyces (yeast) Sexual reproduction involves the formation of asci on an ascocarp Asexual by budding, conidiospores, fragmentation

14 Phylum Basidiomycota Septate ~22,000 species Habitat Nonmotile
Plant litter Nonmotile Examples- Agaricus (mushroom), Puccinia (rusts), Ustilago (smuts) Sexual reproduction involves the formation of basidia on an basidiocarp Asexual by budding, conidiospores, fragmentation


16 Lichens Mycobiont and phycobiont
Mycobiont= part Ascomycota & Basidiomycota ~13,000 species Habitat From the desert to the poles Nonmotile Examples- Caloplaca (crustose), Parmelia (foliose), Usnea (fruticose) Reproduction is by fragmentation



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