Wound-triggered plasticity in plant regeneration

Plant regeneration exemplifies the remarkable developmental plasticity of plants, yet how regenerative programs are initiated and spatially restricted after damage has remained unclear. Recent work supports a damage-first model in which wound-derived signals establish local competence and contextual cues that permit subsequent developmental outcomes. Signals arising from cell wall disruption, mechanical stress, metabolic changes, and wound-induced peptides act analogously to damage-associated molecular patterns in immunity, licensing transient cellular plasticity in a spatially constrained manner. Stress-responsive transcriptional regulators integrate these cues with hormone-mediated execution programs, notably auxin- and cytokinin-driven patterning, and with chromatin-based mechanisms that stabilize new developmental states. Regeneration thus emerges as a selectively gated outcome of damage perception, balanced against rapid wound closure and defense. This conceptual advance provides a cellular framework to study regeneration across different systems and highlights the potential of spatial and multimodal approaches as key tools for resolving regenerative competence.