Lecture 9: Fungi Flashcards
1
Q
Body Plan
A
long branched filaments: hyphae
tangled mass of hyphae: mycelium
hyphae are divided into cell like compartments by porous septae
2
Q
ecto-mycorrhiza
A
hyphae extends into soil and between plant cells
3
Q
endo-mycorrhiza
A
hyphae extends through cell walls
4
Q
lichens
A
fungus+cyanobacterium (or any other unicellular green algae)
- extremophiles
- sensitive to toxins in air
5
Q
leaf cutter ants
A
- feed fungal colony which then breaks down cellulose for ants to eat
- the ants provide food and protection
6
Q
Fungus as plant pathogens
A
corn smut, ergots, tarspot
7
Q
Fungus as animal pathogen
A
ring worm, athletes foot, thrush
8
Q
spores
A
- reproductive structures
- go though meiosis
- spores found in sporangia
9
Q
conidia
A
- naked spores
- formed at types of specialized hyphae (asexually)
10
Q
When did fungus flourish?
A
- Permian era
11
Q
Yeasts
A
- part of MULTIPLE groups of fungus
- have plasmids and asexual reproduction
12
Q
MIcrosporidia
A
- smallest eukaryotic group
- have no mitochondria
- have mitosomes (lack DNA)
- obligate intracellular parasite
13
Q
Chytrids
A
- has both unicellular and multicellular stages
- parasitic (responsible for frog epidermis)`
14
Q
Zygomycota
A
- ex. bread mold
- have haplotonic life cycle
- spores produced atop specialized hyphae
15
Q
Glomeromycota
A
- form arbuscular ENDOmychorrhiza with plants
- no sexual stage
- transfer phosphorus to plants
- increases plants tolerance to stress and pathogens
