Symbiotic associations

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Symbiotic associations
I. Symbiosis A. Definition B. Types of
symbiosis 1. commensalism 2. mutualism 3.
competition 4. predation and parasitism II.
Mycorrhiza A. Definition B. How fungi grow C.
Mycorrhizal types 1. endomycorrhizae a. VA
mycorrhizae b. orchid c. ericoid d.
monotropoid 2. ectomycorrhizae III. Root
nodules legumes and rhizobium IV. Lichens
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I. Symbiosis
A. Definition B. Types of symbiosis 1.
commensalism 2. mutualism 3. competition 4.
predation, parasitism, and pathogenicity






Symbiont one
Symbiont two
Example
Symbiosis
commensalism

o


mutualism
-
-
competition
positive benefit

-
predation et al
- negative
-
allelopathy

o no effect
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II. Mycorrhiza
A. Definition B. How fungi grow
mycorrhiza (fungus-root) relationship between
plant roots and fungi
mycorrhizae, mycorrhizal
hypha, hyphae
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C. Mycorrhizal types
1. endomycorrhizae a. VA mycorrhizae b.
orchid c. ericoid d. monotropoid
nitrogen
Acid soils
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2. ectomycorrhizae
Amanita
chanterelle
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III. Root nodules legumes and rhizobium
N2
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IV. Lichens
crustose

foliose
fruticose
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The end