ArticleThe Plant cell2021
A BLUS1 kinase signal and a decrease in intercellular CO2 concentration are necessary for stomatal opening in response to blue light.
Article in The Plant cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 55 citations in OpenAlex.
- Guard cell signal transduction mechanisms controlling stomatal movements by light, abscisic acid, CO2, VPD and heat.Plant physiology · 2026Review
- Water use efficiency in cereal crops: stomatal, hydraulic, biochemical mechanisms, and translational strategies for improvement.Photosynthesis research · 2026Review
- The red and blue light dialog of stomatal regulation for water-efficient crops.Plant physiology · 2026Review
- Arabidopsis Circadian Clock Protein CCA1 Negatively Regulates the Calcium-Binding Protein CCaP1 to Modulate Dark-Responsive Stomatal Movement.Plant, cell & environment · 2026Article
- Transcriptome Dynamics Provide Insight into the Mechanisms Underlying Cucumber Stomatal Movement Regulated by Blue Light (BL) and Drought Stress.International journal of molecular sciences · 2026Article
- Phosphorylation of WDR48 by phototropins drives starch degradation to promote stomatal opening.Nature communications · 2026Article
- Effects of LED lighting on the nutritional properties and microbial safety of microgreens.Frontiers in nutrition · 2026Review
- Effects of light qualities on the growth and photosynthetic characteristics of Sorbus tianschanica Rupr. seedlings.PloS one · 2026Article
- MAP4K1 and MAP4K2 regulate ABA-induced and CaScience advances · 2025Article
- Stomatal CO2 sensing in plants: control of gas exchange and interactions with environmental stimuli.Plant & cell physiology · 2025Review
- Co-option and neofunctionalization of stomatal executors for defence against herbivores in Brassicales.Nature plants · 2025Article
- Illuminating stomatal responses to red light: establishing the role of Ci-dependent versus -independent mechanisms in control of stomatal behaviour.Journal of experimental botany · 2024Article
- Starch metabolism in guard cells: At the intersection of environmental stimuli and stomatal movement.Plant physiology · 2024Review
- Light-induced stomatal opening requires phosphorylation of the C-terminal autoinhibitory domain of plasma membrane HNature communications · 2024Article
- Stomatal responses to VPD utilize guard cell intracellular signaling components.Frontiers in plant science · 2024Article
- Effect of Different Monochromatic LEDs on the Environmental Adaptability ofPlants (Basel, Switzerland) · 2023Article
- Elevated COThe New phytologist · 2022Article
- Phenotypic and transcriptomic responses of the shade-grown species Panax ginseng to variable light conditions.Annals of botany · 2022Article
- Overexpression of TaLAX3-1B alters the stomatal aperture and improves the salt stress resistance of tobacco.Molecular biology reports · 2022Article
- Light Spectral Composition Modifies Polyamine Metabolism in Young Wheat Plants.International journal of molecular sciences · 2022Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light-induced stomatal opening stimulates CO2 uptake and transpiration in plants. Weak blue light under strong red light effectively induces stomatal opening. Blue light-dependent stomatal opening initiates light perception by phototropins, and the signal is transmitted to a plasma membrane H+-ATPase in guard cells via BLUE LIGHT SIGNALING 1 (BLUS1) kinase. However, it is unclear how BLUS1 transmits the signal to H+-ATPase. Here, we characterized BLUS1 signaling in Arabidopsis thaliana, and showed that the BLUS1 C-terminus acts as an auto-inhibitory domain and that phototropin-mediated Ser-348 phosphorylation within the domain removes auto-inhibition. C-Terminal truncation and phospho-mimic Ser-348 mutation caused H+-ATPase activation in the dark, but did not elicit stomatal opening. Unexpectedly, the plants exhibited stomatal opening under strong red light and stomatal closure under weak blue light. A decrease in intercellular CO2 concentration via red light-driven photosynthesis together with H+-ATPase activation caused stomatal opening. Furthermore, phototropins caused H+-ATPase dephosphorylation in guard cells expressing constitutive signaling variants of BLUS1 in response to blue light, possibly for fine-tuning stomatal opening. Overall, our findings provide mechanistic insights into the blue light regulation of stomatal opening.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.