Abstract

A bioluminescent monitoring system is used to detect the circadian rhythms of individual plant cells. Transgenic Arabidopsis carrying the firefly luciferase (FLuc) gene driven by a circadian-regulated promoter is used as the material for protoplast isolation. The bioluminescence of these protoplasts in the culture medium is separately captured using a highly sensitive camera system. The time-series data of the bioluminescent imaging reveals the circadian rhythms of these isolated cells, enabling the native properties of the cellular circadian clocks to become elucidated.

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