Kaspar Koolmeister

University of Tartu · Institute of Technology

Stomatal pores, formed of paired guard cells, mediate CO 2 uptake for photosynthesis and water loss via transpiration in plants. Globally rising atmospheric CO 2 concentration triggers stomatal closure, contributing to increased leaf temperature and reduced nutrient uptake due to lower transpiration rate. Hence, it is important to understand the si...

Respiration in leaves and the continued elevation in the atmospheric CO2 concentration cause CO2‐mediated reduction in stomatal pore apertures. Several mutants have been isolated for which stomatal responses to both abscisic acid (ABA) and CO2 are simultaneously defective. However, there are only few mutations that impair the stomatal response to e...