A historical overview of how plant internal clocks have been studied over time

The circadian clock regulates growth and development by helping organisms anticipate light-dark transitions.

• The circadian clock is involved in the timing of various physiological processes.
• Key discoveries have been made regarding the genetic and molecular mechanisms of the circadian clock in plants.
• The review highlights the evolution of knowledge about the biological clock over centuries.
• The circadian clock is associated with the adaptation of growth and development in response to environmental changes.

Simplified