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Transcription ofST2AEncoding A Sulfotransferase Family Protein That Is Involved in Jasmonic Acid Metabolism Is Controlled According to the Circadian Clock- and PIF4/PIF5-Mediated External Coincidence Mechanism inArabidopsis thaliana
Daily clock and light-sensitive proteins control the activity of a gene involved in jasmonic acid processing in Arabidopsis plants
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Abstract
Transcription of the ST2A gene is induced at the end of night under specific light and temperature conditions.
- Plant growth is enhanced by specific photoperiod and temperature conditions.
- The circadian clock plays a role in regulating plant architecture, including hypocotyl elongation.
- Phytochrome interacting transcription factors PIF4 and PIF5 are activated under short photoperiod or high temperature.
- Auxin biosynthesis and signal transduction are downstream targets of the circadian clock and PIF4/PIF5 mechanisms.
- Brassinosteroid and gibberellic acid promote hypocotyl elongation, while cytokinin and jasmonic acid have an opposite effect.
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