Symbiotic associations I. Symbiosis A. Definition B. Types of symbiosis 1. commensalism 2. mutualism 3. competition 4. predation and parasitism II. Mycorrhiza.
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Symbiotic associationsI. Symbiosis
A. DefinitionB. Types of symbiosis
1. commensalism2. mutualism3. competition4. predation and parasitism
II. MycorrhizaA. DefinitionB. How fungi grow C. Mycorrhizal types
1. endomycorrhizaea. VA mycorrhizaeb. orchidc. ericoidd. monotropoid
2. ectomycorrhizaeIII. Root nodules: legumes and rhizobiumIV. Lichens
I. SymbiosisA. DefinitionB. Types of symbiosis
1. commensalism2. mutualism3. competition4. predation, parasitism, and pathogenicity
Symbiosis Symbiont one
Symbiont two
Example
commensalism
mutualism
competition
predation et al
+ o
+ = positive benefit
- = negative
o = no effect
+ +
- -
+ -
allelopathy + -
II. MycorrhizaA. DefinitionB. How fungi grow
mycorrhiza (fungus-root): relationship between plant roots and fungi
mycorrhizae, mycorrhizal
hypha, hyphae
C. Mycorrhizal types1. endomycorrhizae
a. VA mycorrhizae
b. orchidc. ericoidd. monotropoid
nitrogen
Acid soils
2. ectomycorrhizae
Amanita
chanterelle
III. Root nodules: legumes and rhizobium
N2
IV. Lichens
crustose
foliose
fruticose
The end
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