The transcriptional regulation of specialized terpenoid biosynthesis and its regulation by jasmonic acid.

Jasmonate-isoleucine (JA-Ile) inducible transcriptional networks, centered on bHLH and MYB transcription factors, regulate specialized mono-, sesqui-, and diterpenoid biosynthesis in model plant systems.

• Why it matters: Specialized terpenoids are important for plant interactions and have economic value, yet their production is costly, so understanding JA-Ile–linked transcriptional control is key for fine tuning.
• What they did: This review synthesizes recent breakthroughs, using examples across mono-, sesqui-, and diterpenoids, to describe transcription-focused regulatory networks in certain model systems, including roles for other phytohormones.
• The result: The work highlights a complex JA-Ile–responsive transcriptional framework and identifies additional regulatory avenues needing more study to optimize specialized metabolite production in crops.

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