Bioengineering plant resistance to abiotic stresses by the global calcium signal system

摘要: Abstract Considerable progresses have taken place both in the methodology available to study changes intracellular cytosolic calcium and our understanding of signaling cascades. It is generally accepted that global signal system functions importantly coping with plant abiotic stresses, especially drought stress, which has been proved further by recent transgenic molecular breeding reports under soil water deficits. In cells, plays roles as a universal transducer coupling wide range extracellular stimuli responses. Different trigger specific signatures: dynamics, amplitude duration transients specify nature, implication intensity stimuli. Calcium-binding proteins (sensors) play critical role decoding signatures transducing signals activating targets corresponding metabolic pathways. Calmodulin (CAM) sensor known regulate activity many mammalian proteins, whose plants are now being identified. Higher possess rapidly growing list CAM variety cellular functions. Nevertheless, appear be unique higher cells remain characterized, calling for concerted effort from animal scientists elucidate their To date, three major classes encoding elements system, including calcium-permeable ion channels,Ca 2 +/ H + antiporters Ca +-ATPases, responsible stress transduction directly or indirectly. This review summarizes current knowledge involved stresses presents suggestions future focus areas study.