stomatal-regulation
Stomatal regulation refers to the physiological and biochemical mechanisms that control the opening and closing of stomata—the microscopic pores on plant leaves that facilitate gas exchange. This regulation is vital to plant function, as it enables plants to balance CO2 uptake needed for photosynthesis with the prevention of excessive water loss through transpiration, two competing demands that directly affect survival and growth. Understanding stomatal regulation mechanisms is increasingly important for developing crops with enhanced drought tolerance and resource efficiency in response to environmental stress.
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
