circadian-biology
Circadian biology is the study of internal biological clocks that govern 24-hour physiological rhythms in organisms. In plants, these circadian rhythms regulate critical processes including photosynthesis, growth rate, flowering time, and stress tolerance. Understanding plant circadian systems is essential because they enable plants to anticipate and synchronize with daily and seasonal environmental changes, directly optimizing their metabolic performance and survival.
PubMed · 2026-02-10
Plant pores open 2.3 hours earlier under elevated CO2, revealing how internal clocks adapt gas exchange to changing atmospheres.
2.3h shift in stomatal opening under 800ppm CO2
TOC1 transcription factor mediates the shift
Circadian adaptation to future CO2 levels
