ArticleCurrent biology : CB2016
The Breakdown of Stored Triacylglycerols Is Required during Light-Induced Stomatal Opening.
Article in Current biology : CB, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
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Who cites it
53 citing papers in PubMed, 121 citations in OpenAlex.
- Guard cell signal transduction mechanisms controlling stomatal movements by light, abscisic acid, CO2, VPD and heat.Plant physiology · 2026Review
- Stomatal movement as an emergent property of the remarkable plasticity of guard cells.The New phytologist · 2026Article
- Lipid and aqueous metabolomic responses of lettuce (Food chemistry: X · 2026Article
- Membrane lipid remodeling under salt stress is associated with salt tolerance in lettuce.BMC plant biology · 2026Article
- Structural insights into Arabidopsis thaliana CTS-mediated fatty acid and hormone metabolism.Nature communications · 2026Article
- Blue light-induced stomatal opening is associated with species-specific changes in primary metabolism but not with starch breakdown in guard cells.The New phytologist · 2025Article
- Differing metabolic responses of guard cells to blue light.The New phytologist · 2025Article
- A CRY1-HY5-MYB signaling cascade fine-tunes guard cell reactive oxygen species levels and triggers stomatal opening.The Plant cell · 2025Article
- Excessive leaf oil modulates the plant abiotic stress response via reduced stomatal aperture in tobacco (Nicotiana tabacum).The Plant journal : for cell and molecular biology · 2025Article
- Metabolic modeling reveals distinct roles of sugars and carboxylic acids in stomatal opening as well as unexpected carbon fluxes.The Plant cell · 2024Article
- Starch metabolism in guard cells: At the intersection of environmental stimuli and stomatal movement.Plant physiology · 2024Review
- Effect of Green Light Replacing Some Red and Blue Light onInternational journal of molecular sciences · 2024Article
- Combined metabolome and transcriptome analyses reveal that growing under Red shade affects secondary metabolite content in Huangjinya green tea.Frontiers in genetics · 2024Article
- Intron-mediated enhancement of DIACYLGLYCEROL ACYLTRANSFERASE1 expression in energycane promotes a step change for lipid accumulation in vegetative tissues.Biotechnology for biofuels and bioproducts · 2023Article
- RBOHF activates stomatal immunity by modulating both reactive oxygen species and apoplastic pH dynamics in Arabidopsis.The Plant journal : for cell and molecular biology · 2023Article
- The ubiquitin-protein ligase MIEL1 localizes to peroxisomes to promote seedling oleosin degradation and lipid droplet mobilization.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Mitochondrial H2S donor AP39 induces stomatal closure by modulating guard cell mitochondrial activity.Plant physiology · 2023Article
- Lipid droplets are versatile organelles involved in plant development and plant response to environmental changes.Frontiers in plant science · 2023Review
- Elevated COThe New phytologist · 2022Article
- The Arabidopsis Rab protein RABC1 affects stomatal development by regulating lipid droplet dynamics.The Plant cell · 2022Article
Corrections and comments
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Authors and funding
12 authors at 6 institutions in 4 countries.
Funding
Abstract
Stomata regulate the uptake of CO2 and the loss of water vapor [1] and contribute to the control of water-use efficiency [2] in plants. Although the guard-cell-signaling pathway coupling blue light perception to ion channel activity is relatively well understood [3], we know less about the sources of ATP required to drive K(+) uptake [3-6]. Here, we show that triacylglycerols (TAGs), present in Arabidopsis guard cells as lipid droplets (LDs), are involved in light-induced stomatal opening. Illumination induces reductions in LD abundance, and this involves the PHOT1 and PHOT2 blue light receptors [3]. Light also induces decreases in specific TAG molecular species. We hypothesized that TAG-derived fatty acids are metabolized by peroxisomal β-oxidation to produce ATP required for stomatal opening. In silico analysis revealed that guard cells express all the genes required for β-oxidation, and we showed that light-induced stomatal opening is delayed in three TAG catabolism mutants (sdp1, pxa1, and cgi-58) and in stomata treated with a TAG breakdown inhibitor. We reasoned that, if ATP supply was delaying light-induced stomatal opening, then the activity of the plasma membrane H(+)-ATPase should be reduced at this time. Monitoring changes in apoplastic pH in the mutants showed that this was the case. Together, our results reveal a new role for TAGs in vegetative tissue and show that PHOT1 and PHOT2 are involved in reductions in LD abundance. Reductions in LD abundance in guard cells of the lycophyte Selaginella suggest that TAG breakdown may represent an evolutionarily conserved mechanism in light-induced stomatal opening.
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Registered trials
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.