Abscisic acid and CO2 signalling via calcium sensitivity priming in guard cells new CDPK mutant phenotypes and a method for improved resolution of stomatal stimulus–response analyses

摘要

BackgroundStomatal guard cells are the regulators of gas exchange between plants and the atmosphere. Ca²⁺-dependent and Ca²⁺-independent mechanisms function in these responses. Key stomatal regulation mechanisms, including plasma membrane and vacuolar ion channels have been identified and are regulated by the free cytosolic Ca²⁺ concentration ([Ca²⁺]cyt).