Photoperiod, Light Quality, and Intensity: Integrated Signalling and Hormonal Crosstalk in the Spatiotemporal Control of Plant Vascular Development.

Light signalling regulates plant vascular development, coordinating cambial activity, xylem/phloem differentiation, and secondary cell wall formation in response to photoperiod, light quality, and intensity.

• Why it matters: Plants must translate fluctuating light environments into developmental decisions, but the integrated signalling and hormonal crosstalk controlling vascular patterning remains incompletely synthesized.
• What they did: This review synthesizes existing knowledge on how light signalling components interact with vascular developmental regulators to control spatiotemporal vascular development.
• The result: The integrated framework clarifies mechanisms underlying adaptation to variable light and supports efforts to enhance crop resilience and woody biomass yield under climate change.

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