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Control of guard cell aperture by protein kinase CIPK23

Guard cells are responsible for the opening and closing of stomata through changes in osmotic content and turgor pressure. These changes occur in response to activation or inactivation of ion transport proteins that are in turn regulated by protein kinase and phosphatase networks. The kinase network…

Guard cell endomembrane Ca2+-ATPases underpin a ‘carbon memory’ of photosynthetic assimilation that impacts on water-use efficiency (Nature Plants)

Stomatal guard cells control both carbon dioxide uptake and transpirational water loss. Guard cell control over the stomatal pore  aperture is sensitive to water status (through ABA) as well as the amount of CO2 available within the leaf air space. Several studies have indicated that stomatal aperture…