Understanding ABA-Induced Stomatal Closure and Plant Physiology

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Questions and Answers

Which hormone is associated with the opening and closing of stomata?

  • ABA (correct)
  • Salicylic acid
  • Jasmonates
  • Isoleucine

Which hormone is associated with biotrophic organisms?

  • Isoleucine
  • ABA
  • Salicylic acid (correct)
  • Jasmonates

Where does JA biosynthesis occur in the cells?

  • Nucleus
  • Golgi apparatus
  • Plastids (correct)
  • Endoplasmic reticulum

Which hormone is responsible for the response to biotrophic pathogens?

<p>Salicylic acid (B)</p> Signup and view all the answers

What triggers the induction of protease inhibitors in plants?

<p>Wounding or cutting of plants (D)</p> Signup and view all the answers

Which hormone contributes to systemic acquired resistance in plants?

<p>Salicylic acid (D)</p> Signup and view all the answers

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Study Notes

Hormones and Plant Responses

  • Abscisic acid (ABA) is associated with the opening and closing of stomata.

Hormones and Microorganisms

  • Jasmonic acid (JA) is associated with biotrophic organisms.

Jasmonic Acid Biosynthesis

  • Jasmonic acid (JA) biosynthesis occurs in the chloroplasts of cells.

Plant Defense Responses

  • Jasmonic acid (JA) is responsible for the response to biotrophic pathogens.

Protease Inhibitors

  • Methyl jasmonate triggers the induction of protease inhibitors in plants.

Systemic Acquired Resistance

  • Salicylic acid (SA) contributes to systemic acquired resistance in plants.

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