ArticleJournal of experimental botany2014
Isoprene improves photochemical efficiency and enhances heat dissipation in plants at physiological temperatures.
Article in Journal of experimental botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed, 71 citations in OpenAlex.
- Improved state‑transition analysis in tobacco lines differing in isoprene emission via spectral‑retrieval separation of PSI and PSII fluorescence at physiological temperature.Photosynthesis research · 2026Article
- Mechanisms of Isoprene Decoupling in Poplar: Precursor Dynamics and VOC Fluxes Under Acute Thermal Exposure and Elevated COPlants (Basel, Switzerland) · 2026Article
- Melatonin and Grain Legume Crops: Opportunities for Abiotic Stress Tolerance Enhancement and Food Sustainability.Plants (Basel, Switzerland) · 2025Review
- Connecting optical remote sensing of plant photosynthesis with biogenic volatile organic compound emissions.The New phytologist · 2025Review
- Leaf spectroscopy as a tool for predicting the presence of isoprene emissions and terpene storage in central Amazon forest trees.Plant methods · 2025Article
- Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species.Frontiers in plant science · 2025Article
- Interactions between leaf phenological type and functional traits drive variation in isoprene emissions in central Amazon forest trees.Frontiers in plant science · 2024Article
- HDR, the last enzyme in the MEP pathway, differently regulates isoprenoid biosynthesis in two woody plants.Plant physiology · 2023Article
- Characterization of promoter elements of isoprene-responsive genes and the ability of isoprene to bind START domain transcription factors.Plant direct · 2023Article
- Isoprene-Emitting Tobacco Plants Are Less Affected by Moderate Water Deficit under Future Climate Change Scenario and Show Adjustments of Stress-Related Proteins in Actual Climate.Plants (Basel, Switzerland) · 2023Article
- Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation inPhotosynthetica · 2023Article
- Isoprene Emission Influences the Proteomic Profile of Arabidopsis Plants under Well-Watered and Drought-Stress Conditions.International journal of molecular sciences · 2022Article
- Leaf isoprene emission as a trait that mediates the growth-defense tradeoff in the face of climate stress.Oecologia · 2021Article
- Valorization of Bio-Residues from the Processing of Main Portuguese Fruit Crops: From Discarded Waste to Health Promoting Compounds.Molecules (Basel, Switzerland) · 2021Review
- Isoprene: An Antioxidant Itself or a Molecule with Multiple Regulatory Functions in Plants?Antioxidants (Basel, Switzerland) · 2021Review
- Volatile organic compound emission in tundra shrubs - Dependence on species characteristics and the near-surface environment.Environmental and experimental botany · 2021Article
- On the mathematical modelling and data assimilation for air pollution assessment in the Tropical Andes.Environmental science and pollution research international · 2020Review
- Source of 12C in Calvin-Benson cycle intermediates and isoprene emitted from plant leaves fed with 13CO2.The Biochemical journal · 2020Article
- Overexpression of Isoprene Synthase Affects ABA- and Drought-Related Gene Expression and Enhances Tolerance to Abiotic Stress.International journal of molecular sciences · 2020Article
- Exogenous Isoprene Confers Physiological Benefits in a Negligible Isoprene Emitter (Plants (Basel, Switzerland) · 2020Article
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Isoprene-emitting plants are better protected against thermal and oxidative stresses. Isoprene may strengthen membranes avoiding their denaturation and may quench reactive oxygen and nitrogen species, achieving a similar protective effect. The physiological role of isoprene in unstressed plants, up to now, is not understood. It is shown here, by monitoring the non-photochemical quenching (NPQ) of chlorophyll fluorescence of leaves with chemically or genetically altered isoprene biosynthesis, that chloroplasts of isoprene-emitting leaves dissipate less energy as heat than chloroplasts of non-emitting leaves, when exposed to physiologically high temperatures (28-37 °C) that do not impair the photosynthetic apparatus. The effect was especially remarkable at foliar temperatures between 30 °C and 35 °C, at which isoprene emission is maximized and NPQ is quenched by about 20%. Isoprene may also allow better stability of photosynthetic membranes and a more efficient electron transfer through PSII at physiological temperatures, explaining most of the NPQ reduction and the slightly higher photochemical quenching that was also observed in isoprene-emitting leaves. The possibility that isoprene emission helps in removing thermal energy at the thylakoid level is also put forward, although such an effect was calculated to be minimal. These experiments expand current evidence that isoprene is an important trait against thermal and oxidative stresses and also explains why plants invest resources in isoprene under unstressed conditions. By improving PSII efficiency and reducing the need for heat dissipation in photosynthetic membranes, isoprene emitters are best fitted to physiologically high temperatures and will have an evolutionary advantage when adapting to a warming climate.
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