Download Fungi - Revere Local Schools

Kingdom: Fungi
Domain Eukarya
Domain
Bacteria
Domain
Archaea
Common ancestor
Domain
Eukarya
General characteristics
 Classification criteria
eukaryotes
 heterotrophs

 feed by absorption

mostly multicellular
 except unicellular yeasts

cell wall
 chitin
 rigid polysaccharide

sexual & asexual reproduction
Fungal Structure
 Fungal body

mycelium
 thread-like cells
 hyphae
 Cells

multiple nuclei
 Cell wall

chitin
 just like crab shells
Internal structure
 Eukaryotic cells

long, thread-like cells
 filamentous

incomplete divisions
between cells
 septum

multiple nuclei
chitin cell wall
septum
pore
nuclei
Modes of Nutrition
 Heterotrophic
fungal hypha
secrete digestive enzymes
 feed by absorption

 predators
plant cell
 paralyzing prey
membrane
 parasites
 feeding on living creatures
 decomposer
 breakdown dead remains
plant
cell wall
plant cell
Fungal Diversity
Fungi
Ecological Roles
 Decomposers

recycle nutrients
 Symbiotic Relationships

lichen
 fungi + algae
 pioneer species in
ecosystems
 makes soil from bare rock

mycorrhizae
 fungi + plants
 enables plants to absorb more water
Mycorrhizae
 Critical role in plant growth

extends water absorption of roots
without
mycorrhizae
Endomycorrhiza
Ectomycorrhiza
with
mycorrhizae
Reproduction
 Asexual

budding in yeast
 Sexual

spores
 spread by wind

joining of + & – haploid spores
haploid
spores
Zygomycete (Bread Mold) Life Cycle
spores
mating strain
hypha
sporangium
MEIOSIS
(2n)
diploid
(n)
haploid
FUSION of
gametangia
mating strain
Basidiomycete Life Cycle
gills lined
with basidia
fruiting body
basidium
(n + n)
dikaryotic
2n (diploid)
(n)
haploid
zygote
strain
FUSION of
hyphae
spores
strain
Fairy Rings
The FIRST Antibiotics
Any
Questions??