Kingdom: Fungi

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Kingdom Fungi

• Domain Eukarya

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General characteristics

• Classification criteria
• _____________________
• _____________________
• feed by absorption
• mostly multicellular
• except unicellular yeasts
• _____________________
• ____________________
• rigid polysaccharide
• sexual asexual reproduction

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Fungal Structure

• Fungal body
• mycelium
• thread-like cells
• hyphae
• Cells
• multiple nuclei
• Cell wall
• chitin
• just like crab shells

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Internal structure
chitin cell wall
septum

• Eukaryotic cells
• long, thread-like cells
• filamentous
• incomplete divisions between cells
• septum
• multiple nuclei

pore
nuclei
Aaaaah,structurefunctionrelationship!
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Modes of Nutrition

• Heterotrophic
• secrete digestive enzymes
• feed by absorption
• parasites
• feeding on living creatures
• predators
• paralyzing prey
• decomposer
• breakdown dead remains

fungal hypha
plantcell wall
plant cellmembrane
plant cell
Fungi live IN their food! Its like you living
in Chocolate cake!
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Fungal Diversity
Zygomycota
Ascomycota
Basidiomycota
Chytridiomycota
Fungi
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Ecological Roles

• ___________________
• recycle nutrients
• Symbiotic Relationships
• _____________________
• fungi algae
• pioneer species in ecosystems
• makes soil from bare rock
• _____________________
• fungi plants
• enables plants to absorb more water

Lichens are fungi that have discovered
agriculture!
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Mycorrhizae

• Critical role in plant growth
• extends water absorption of roots

withoutmycorrhizae
withmycorrhizae
Ectomycorrhiza
Endomycorrhiza
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Reproduction

• Asexual
• budding in yeast
• Sexual
• spores
• spread by wind
• joining of haploid spores

haploidspores
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Zygomycete (Bread Mold) Life Cycle
spores(haploid)
mating strain
hypha
sporangium
MEIOSIS
mating strain
(2n)diploid
(n)haploid
FUSION of and gametangia
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Basidiomycete Life Cycle
gills lined with basidia
fruiting body
basidium
(n n)dikaryotic

2n (diploid)
(n)haploid
zygote
MEIOSIS
strain
spores
FUSION of and hyphae
strain
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Fairy Rings
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The FIRST Antibiotics
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Any Questions??