Plants use light-sensing proteins to keep their internal 24-hour clock in sync with the sun, which controls everything from when leaves open to when flowers bloom. This review maps out how those light sensors and the plant's clock talk to each other in Arabidopsis, a common lab plant.
1
Review synthesizes current knowledge on interactions between distinct classes of photoreceptors and core circadian oscillator components in Arabidopsis thaliana.
2
Light acts as the primary zeitgeber (time cue) that resets the plant clock, with photoreceptors modulating both transcription and activity of oscillator genes.
3
The relationship is bidirectional: the circadian clock also feeds back to shape how plants respond to light across different wavelengths.
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