Starch metabolism in guard cells: At the intersection of environmental stimuli and stomatal movement
Trang Dang, Lucia Piro, Carlo Pasini, Diana Santelia
Abstract
Starch metabolism in guard cells plays a central role in regulating stomatal movement in response to light, elevated ambient CO2 and potentially other abiotic and biotic factors. Here, we discuss how various guard cell signal transduction pathways converge to promote rearrangements in guard cell starch metabolism for efficient stomatal responses, an essential physiological process that sustains plant productivity and stress tolerance. We suggest manipulation of guard cell starch dynamics as a previously overlooked strategy to improve stomatal behavior under changing environmental conditions.
Topics & Concepts
Guard cellGuard (computer science)Intersection (aeronautics)MetabolismStarchChemistryBotanyBiologyBiochemistryComputer scienceEngineeringTransport engineeringProgramming languagePlant nutrient uptake and metabolismPlant Stress Responses and TolerancePlant responses to water stress