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Related Concept Videos

Plant Hormones01:56

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
Plant Hormones01:56

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Updated: May 25, 2026

Direct Observation and Automated Measurement of Stomatal Responses to Pseudomonas syringae pv. tomato DC3000 in Arabidopsis thaliana
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Jasmonates.

Iván F Acosta1, Edward E Farmer

  • 1Department of Plant Molecular Biology, University of Lausanne, Biophore, CH-1015 Lausanne, Switzerland.

The Arabidopsis Book
|February 4, 2012
PubMed
Summary
This summary is machine-generated.

Arabidopsis serves as a model for studying jasmonates, crucial plant hormones regulating cell damage, invasion responses, and reproduction. Jasmonate signaling involves a receptor similar to auxin receptors and requires repressor protein degradation.

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Area of Science:

  • Plant biology
  • Molecular signaling
  • Hormone research

Background:

  • Oxy lipins, specifically jasmonates, play vital roles in plant defense and reproduction.
  • Jasmonic acid (JA) acts as a prohormone, conjugated to amino acids to form active signaling molecules.
  • Jasmonate signaling pathways share similarities with auxin signaling pathways, involving receptor proteins and protein degradation.

Purpose of the Study:

  • To provide a comprehensive overview of jasmonate function and signaling in Arabidopsis.
  • To explain the molecular mechanisms underlying jasmonate perception and response.
  • To offer a practical guide to studying jasmonates.

Main Methods:

  • Utilizing Arabidopsis thaliana as a model organism for genetic and molecular studies.
  • Reviewing current literature on jasmonate biosynthesis, perception, and signaling.
  • Employing a frequently asked question (FAQ) format for clarity and accessibility.

Main Results:

  • Jasmonates are essential regulators of plant responses to biotic and abiotic stresses.
  • The major jasmonate receptor is structurally related to auxin receptors.
  • Jasmonate signaling necessitates the degradation of repressor proteins, analogous to auxin signaling.

Conclusions:

  • Arabidopsis is an excellent model for dissecting jasmonate-mediated processes.
  • Understanding jasmonate signaling is key to improving plant defense and reproductive success.
  • The chapter provides a foundational understanding and practical insights into jasmonate research.