ArticleJournal of experimental botany2020
Is nitric oxide a critical key factor in ABA-induced stomatal closure?
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 36 citations in OpenAlex.
- Nitric oxide and abscisic acid: two intimate collaborators regulating plant defense against drought.Protoplasma · 2026Review
- Chemical application improves stress resilience in plants.Plant molecular biology · 2025Review
- Nitric oxide regulates photosynthesis and the capacity of the antioxidant system under water deficit and rehydration inFrontiers in plant science · 2025Article
- Cytosolic alkalinization in guard cells: an intriguing but interesting event during stomatal closure that merits further validation of its importance.Frontiers in plant science · 2024Review
- Effect of preharvest conditions on cut-flower quality.Frontiers in plant science · 2023Review
- Exogenous Nitric Oxide and Silicon Applications Alleviate Water Stress in Apricots.Life (Basel, Switzerland) · 2022Article
- Scavenging of nitric oxide up-regulates photosynthesis under drought in Festuca arundinacea and F. glaucescens but reduces their drought tolerance.Scientific reports · 2022Article
- Molecular Mechanisms of Nitric Oxide (NO) Signaling and Reactive Oxygen Species (ROS) Homeostasis during Abiotic Stresses in Plants.International journal of molecular sciences · 2021Review
- An update on redox signals in plant responses to biotic and abiotic stress crosstalk: insights from cadmium and fungal pathogen interactions.Journal of experimental botany · 2021Review
- Article
- Integration of Metabolome and Transcriptome Studies Reveals Flavonoids, Abscisic Acid, and Nitric Oxide Comodulating the Freezing Tolerance inFrontiers in plant science · 2021Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The role of nitric oxide (NO) in abscisic acid (ABA)-induced stomatal closure is a matter of debate. We conducted experiments in Vicia faba leaves using NO gas and sodium nitroprusside (SNP), a NO-donor compound, and compared their effects to those of ABA. In epidermal strips, stomatal closure was induced by ABA but not by NO, casting doubt on the role of NO in ABA-mediated stomatal closure. Leaf discs and intact leaves showed a dual dose response to NO: stomatal aperture widened at low dosage and narrowed at high dosage. Overcoming stomatal resistance by means of high CO2 concentration ([CO2]) restored photosynthesis in ABA-treated leaf discs but not in those exposed to NO. NO inhibited photosynthesis immediately, causing an instantaneous increase in intercellular [CO2] (Ci), followed by stomatal closure. However, lowering Ci by using low ambient [CO2] showed that it was not the main factor in NO-induced stomatal closure. In intact leaves, the rate of stomatal closure in response to NO was about one order of magnitude less than after ABA application. Because of the different kinetics of photosynthesis and stomatal closure that were observed, we conclude that NO is not likely to be the key factor in ABA-induced rapid stomatal closure, but that it fine-tunes stomatal aperture via different pathways.
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