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Related Experiment Video

Updated: Jun 6, 2026

Translation Efficiency Test Using Polysome Profiles Under Heat Stress
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Jasmonic Acid Gradients Reprogram Rice Transcription: Mild Stress Priming to Growth-Defense Balance to Strong Defense

Wen Zhi Liu1, Hui Zou1, Feng Chao Yan2

  • 1College of Life Science, Research Center for Eco-Environmental Sciences and Green Development, Shangrao Normal University, Shangrao, 334001, China.

Annals of Botany
|June 4, 2026
PubMed
Summary

Jasmonic acid (JA) concentration gradients reprogram rice. Low JA primes for stress, intermediate promotes growth, and high JA activates defense, revealing a concentration-dependent model for plant responses.

Keywords:
Concentration-dependent responseGrowth–defense trade-offJasmonic acidPrecision applicationRiceTranscriptional reprogramming

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Area of Science:

  • Plant Biology
  • Molecular Biology
  • Genomics

Background:

  • Jasmonic acid (JA) is a crucial plant hormone governing growth and defense mechanisms.
  • Understanding how JA concentration gradients influence rice gene expression and physiological changes is essential.

Purpose of the Study:

  • To investigate the effects of varying exogenous jasmonic acid (JA) concentrations on the rice transcriptome.
  • To elucidate the coordination of physiological transitions driven by JA-induced transcriptional reprogramming.

Main Methods:

  • Rice seedlings were treated with different concentrations of exogenous JA (0.02, 0.1, and 0.5 mM).
  • Transcriptomic profiling, phenotypic analysis, and gene functional analysis were employed to assess genome-wide responses.

Main Results:

  • JA treatment modulated root length and shoot height in a dose-dependent manner.
  • Low JA (0.02 mM) enriched stress pathways; intermediate JA (0.1 mM) promoted organelle development and growth; high JA (0.5 mM) activated defense and hormone responses.
  • Distinct concentration-dependent expression patterns were observed for growth, stress resistance, and JA-responsive genes, including serine/threonine protein kinases.

Conclusions:

  • A concentration-dependent model was developed, illustrating JA gradients driving sequential physiological transitions from stress priming to growth-defense balance and robust defense.
  • This provides a mechanistic framework for JA-mediated growth-defense trade-offs.
  • Findings have implications for utilizing exogenous JA in rice cultivation.