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Published on: February 15, 2019
Starch metabolism in guard cells: At the intersection of environmental stimuli and stomatal movement
Trang Dang1, Lucia Piro1, Carlo Pasini1
1Department of Environmental Systems Science, Institute of Integrative Biology, ETH Zurich, 8092 Zurich, Switzerland.
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.
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