Local signals produced by wounding are thought to trigger organ regeneration but molecular mechanisms underlying this control remain largely unknown. Together, our findings uncover a key molecular pathway that links wound signaling to shoot regeneration in plants.ĪB - Many plant species display remarkable developmental plasticity and regenerate new organs after injury. The expression of ESR1 is strongly reduced in WIND1-SRDX dominant repressors, and ectopic overexpression of ESR1 bypasses defects in callus formation and shoot regeneration in WIND1-SRDX plants, supporting the notion that ESR1 acts downstream of WIND1. Our data show that WIND1 directly binds the vascular system-specific and wound-responsive cis-element-like motifs within the ESR1 promoter and activates its expression. The esr1 mutants are defective in callus formation and shoot regeneration conversely, its overexpression promotes both of these processes, indicating that ESR1 functions as a critical driver of cellular reprogramming. In this study, we demonstrate that WIND1 promotes callus formation and shoot regeneration by upregulating the expression of the ENHANCER OF SHOOT REGENERATION1 (ESR1) gene, which encodes another AP2/ERF transcription factor in Arabidopsis thaliana. We previously identified an AP2/ERF transcription factor WOUND INDUCED DEDIFFERENTIATION1 (WIND1) as a central regulator of wound-induced cellular reprogramming in plants. N2 - Many plant species display remarkable developmental plasticity and regenerate new organs after injury. © 2016 American Society of Plant Biologists. T1 - WIND1 promotes shoot regeneration through transcriptional activation of ENHANCER OF SHOOT REGENERATION1 in arabidopsis Together, our findings uncover a key molecular pathway that links wound signaling to shoot regeneration in plants.", Together, our findings uncover a key molecular pathway that links wound signaling to shoot regeneration in plants.Ībstract = "Many plant species display remarkable developmental plasticity and regenerate new organs after injury. Many plant species display remarkable developmental plasticity and regenerate new organs after injury.
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