This presentation is Copyright 2000 by Thomas J. Volk, University of Wisconsin-La Crosse
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The Kingdom Fungi
Mycology
Classification of Organisms
Three Domains
The five kingdom system-- or four or five kingdoms within Eukarya
Alternatively, The three kingdom system:
Classification of Fungi
White button pizza mushroom
Characteristics of fungi
more fungi characteristics 2
more fungi characteristics 3
more fungi characteristics 4
Recent molecular evidence strongly suggests that fungi are probably more closely related to animals that to either plants or protists!
Lack of Chlorophyll profoundly affects the lifestyle of fungi:
The vegetative growth form in a great majority of the fungi consists of a system of thread-like, walled, more or less cylindrical, hyphae (singular --hypha) making up what is called a mycelium (plural--mycelia). Some have a single celled vegetative form called a yeast.
Nutritional status of fungi
Saprophytes:
Parasites:
Mutualists (symbionts):
Mycorrhizae
Types of Mycorrhizae
Ectomycorrhizae
Endomycorrhizae
Lichens
Lichen ecology
Lichen uses
Commensalism:
As a group, fungi are very successful organisms:
Many fungi are harmful to human interests:
Many fungi are very useful to humans:
Fungi are important experimental organisms
Asexual and Sexual Reproduction in fungi
Sexual Reproduction (teleomorph)
Sexual reproduction
PPT Slide
Nuclear cycles of various fungal groups
Four major phyla of Fungi, based on the method of producing sexual spores:
Chytridiomycota — sexual and asexual spores motile, with posterior flagella
Zygomycota— sexual spores are thick walled resting spores called zygospores --asexual spores are borne internally in a sporangium
Ascomycota—sexual spores borne internally in a sac called an ascus-- asexual spores are borne externally as conidia
Basidiomycota—sexual spores borne externally on a club-shaped structure called a basidium. Usually no asexual spores
“deuteromycetes”-- no known sexual state, usually reproduces by conidia as asexual state
Asexual reproduction
Asexual Spores
Asexual spores
Yeast reproduction
Fruiting bodies
Surface area and reproduction
Gills
Pores
Folds
Teeth
Blunt ridges
Smooth
Upright branches (corals)
Thanks for visiting!
Email: volk.thom@uwlax.edu
Home Page: http://TomVolkFungi.net