Term
Fungi:
How many species?
Where are they found?
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Definition
- > 80,000 species
- Terrestrial, aquatic, marine
- Most (known) Fungi are terrestrial
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Term
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Definition
Important decomposers
recycle nutrients |
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Term
| Parasitic/Pathogenic fungi |
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Definition
Athlete’s foot (& jock itch)
“Ringworm” = tinea corporis
Pneumocystis- Pneumonia
Yeast infections (Candida albicans)
Rusts, smuts, powdery mildews, other diseases of crops & ornamental plants |
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Term
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Definition
Lichens (fungus + alga)
Mycorrhizae
-fungi living on plant roots
-aid uptake of water and nutrients from soil
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Term
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Definition
•Mycelium (web of root like structures) of hyphae (root like structure)
–septate (dividers that allow controlled flow of cytoplasm) or non-septate
•Cell walls of chitin
•Heterotrophic (nitrogen and carbon) by absorption |
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Term
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Definition
•Phylum Chytridiomycota
•Phylum Zygomycota
•Phylum Glomeromycetes
•Phylum Ascomycota
•Phylum Basidiomycota
"Imperfect Fungi" |
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Term
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Definition
Aquatic
Flagellated, swimming spores
Feed on dead aquatic plants, detritus
Frog parasites |
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Term
Phylum Ascomycota (ascomycetes)
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Definition
hyphae septate
Asexual reproduction by conidia, conidiospores
“naked” spores on ends of upright hyphae |
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Term
Phylum Ascomycota
Reproduction |
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Definition
Sexual reproduction in an ascus (asci)
Ascus contains 8 ascospores |
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Term
Phylum Ascomycota
examples
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Definition
cup fungi
yeasts
morels
truffles |
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Term
Phylum Zygomycota
Structure |
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Definition
Hyphae non-septate
•no walls or membranes between cells
•nuclei & other organelles can move freely within hyphae
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Term
Phylum Zygomycota
Reproduction |
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Definition
Zygospores for sexual reproduction
Contains dikaryotic pairs of nuclei
Asexual spores formed in sporangia
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Term
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Definition
Hyphae septate
“Fruiting body” forms basidia
Basidia become zygotes, then form basidiospores |
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Term
Phylum Basidiomycota
examples |
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Definition
Mushrooms, toadstools
Bracket fungi
Puffballs
Smut, Ustilagomaydis
Rusts (not metal rust) |
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Term
| "Imperfect Fungi" Deuteromycota |
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Definition
Sexual reproduction unknown
some fungi not studied, poorly known
some fungi evolved to lose ability to reproduce sexually
Without sexual structures can’t be placed in any
Phylum.
Polyphyletic |
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