Mesophyll-derived sugars are positive regulators of light-driven stomatal opening
Metadata only
Date
2021-06Type
- Review Article
Abstract
Guard cell membrane ion transport and metabolism are deeply interconnected, and their coordinated regulation is integral to stomatal opening. Whereas ion transport is exceptionally well understood, how guard cell metabolism influences stomatal movements is less well known. Organic metabolites, such as malate and sugars, fulfill several functions in guard cells during stomatal opening as allosteric activators, counter-ions, energy source and osmolytes. However, their origin and exact fate remain debated. Recent work revealed that the guard cell carbon pool regulating stomatal function and plant growth is mostly of mesophyll origin, highlighting a tight correlation between mesophyll and guard cell metabolism. This review discusses latest research into guard cell carbon metabolism and its impact on stomatal function and whole plant physiology. Show more
Publication status
publishedExternal links
Journal / series
New PhytologistVolume
Pages / Article No.
Publisher
WileySubject
blue light; glucose; guard cells; malate; plant growth; starch; stomatal opening; sucroseOrganisational unit
08715 - Gruppe Mol. Physiologie der Pflanzen / Plant Molecular Physiology Group
03706 - Widmer, Alexander / Widmer, Alexander
08715 - Gruppe Mol. Physiologie der Pflanzen / Plant Molecular Physiology Group
Funding
185241 - Rewiring starch metabolism for plant environmental adaptation (SNF)
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