Nod Factors and Calcium Flux in Legume Roots
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Questions and Answers

What is the function of NAP2 in Medicago truncatula?

  • Induces root nodule formation
  • Encodes a GARS protein essential for Nod-factor signaling (correct)
  • Regulates calcium/calmodulin-dependent protein kinase
  • Transduces calcium signal in plants

What is the role of NSP1 in legume hosts?

  • Essential for all known Nod factor-induced changes in gene expression (correct)
  • Triggers calcium spiking
  • Induces Nod factor signaling
  • Encodes a GARS protein

What is a very early response induced by Nod factors in root hairs?

  • Calcium spiking
  • Root nodule formation
  • Transient activation of ionic fluxes (correct)
  • Expression of many genes

What is the role of NSP2 in nodulation signaling?

<p>Functions downstream of Nod-factor-induced calcium spiking (A)</p> Signup and view all the answers

What is the function of a calcium/calmodulin-dependent protein kinase in nodulation signaling?

<p>Functions downstream of Nod-factor-induced calcium spiking (C)</p> Signup and view all the answers

What is the effect of Nod factors on legume hosts?

<p>Induces the expression of many genes and sets in motion developmental processes leading to root nodule formation (A)</p> Signup and view all the answers

What is the result of Nod factor-induced calcium changes in root hair cells?

<p>Considerable changes in ion fluctuations (B)</p> Signup and view all the answers

What is the role of GARS proteins in nodulation signaling?

<p>Encodes a protein essential for Nod-factor signaling (D)</p> Signup and view all the answers

What is the effect of Nod factors on gene expression in legume hosts?

<p>Induces the expression of many genes (C)</p> Signup and view all the answers

What is the significance of NSP1 in Medicago truncatula?

<p>Essential for all known Nod factor-induced changes in gene expression (D)</p> Signup and view all the answers

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