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evil eco > Mycorrhiza > Flashcards

Mycorrhiza Flashcards

1
Q

Glomeromycota

A

characterized by their formation of arbuscles (haustoria) in root cortex cells

ARBUSCULAR

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2
Q

Phosphorus in soil

A

Diffusion of phosphorus in soil is slow

But the uptake at the root surface is fast

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3
Q

Which plants form arbuscular
mycorrhizae?

A
  • Clubmoss
  • Ferns
  • Sequoia
  • Kauri
  • Gymnosperms: Gingo, thuja, podocarps
  • Angiosperms: monocots and dicots
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4
Q

Host specificity?

A
  • Arbuscular mycorrhizal fungi are not host specific (differ in dependence)
  • ecto: Some host specific, many generalists (found throughout boreal, temperate and tropical ecosystems)
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5
Q

SYM genes

A

necessary for mycorrhiza formation

Several also involved in the Rhizobium symbiosis

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