ArticlePlant physiology2010
Temperature response of isoprene emission in vivo reflects a combined effect of substrate limitations and isoprene synthase activity: a kinetic analysis.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed, 131 citations in OpenAlex.
- Mechanisms of Isoprene Decoupling in Poplar: Precursor Dynamics and VOC Fluxes Under Acute Thermal Exposure and Elevated COPlants (Basel, Switzerland) · 2026Article
- Photosynthetic Temperature Tolerance Threshold Determines How Isoprene Emission is Affected by Elevated COPlant-environment interactions (Hoboken, N.J.) · 2025Article
- Biosynthetic Machinery to Abiotic Stress-Driven Emission: Decoding Multilayer Regulation of Volatile Terpenoids in Plants.Antioxidants (Basel, Switzerland) · 2025Review
- High temperature sensitivity of Arctic isoprene emissions explained by sedges.Nature communications · 2024Article
- Limitations of Plant Stress Tolerance upon Heat and COPlants (Basel, Switzerland) · 2024Article
- Deoxyxylulose 5-Phosphate Synthase Does Not Play a Major Role in Regulating the Methylerythritol 4-Phosphate Pathway in Poplar.International journal of molecular sciences · 2024Article
- A Novel Isoprene Synthase from the Monocot TreeInternational journal of molecular sciences · 2023Article
- Policy-Related Gains in Urban Air Quality May Be Offset by Increased Emissions in a Warming Climate.Environmental science & technology · 2023Article
- Age effects of Moso bamboo on leaf isoprene emission characteristics.Frontiers in plant science · 2023Article
- Stress-Induced Volatile Emissions and Signalling in Inter-Plant Communication.Plants (Basel, Switzerland) · 2022Review
- Biogenic Volatile Organic Compounds and Protein Expressions ofPlants (Basel, Switzerland) · 2022Article
- Improved plant heat shock resistance is introduced differently by heat and insect infestation: the role of volatile emission traits.Oecologia · 2022Article
- Protein expression plasticity contributes to heat and drought tolerance of date palm.Oecologia · 2021Article
- Responses of isoprene emission and photochemical efficiency to severe drought combined with prolonged hot weather in hybrid Populus.Journal of experimental botany · 2020Article
- Shoot Characterization of Isoprene and Ocimene-Emitting TransgenicPlants (Basel, Switzerland) · 2020Article
- Isoprene: New insights into the control of emission and mediation of stress tolerance by gene expression.Plant, cell & environment · 2019Review
- Isoprene Acts as a Signaling Molecule in Gene Networks Important for Stress Responses and Plant Growth.Plant physiology · 2019Article
- Alternative Carbon Sources for Isoprene Emission.Trends in plant science · 2018Review
- Contribution of volatile organic compound fluxes to the ecosystem carbon budget of a poplar short-rotation plantation.Global change biology. Bioenergy · 2018Article
- In Planta Recapitulation of Isoprene Synthase Evolution from Ocimene Synthases.Molecular biology and evolution · 2017Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The responses of isoprene emission rate to temperature are characterized by complex time-dependent behaviors that are currently not entirely understood. To gain insight into the temperature dependencies of isoprene emission, we studied steady-state and transient responses of isoprene emission from hybrid aspen (Populus tremula × Populus tremuloides) leaves using a fast-response gas-exchange system coupled to a proton-transfer reaction mass spectrometer. A method based on postillumination isoprene release after rapid temperature transients was developed to determine the rate constant of isoprene synthase (IspS), the pool size of its substrate dimethylallyldiphosphate (DMADP), and to separate the component processes of the temperature dependence of isoprene emission. Temperature transients indicated that over the temperature range 25°C to 45°C, IspS was thermally stable and operated in the linear range of its substrate DMADP concentration. The in vivo rate constant of IspS obeyed the Arrhenius law, with an activation energy of 42.8 kJ mol(-1). In contrast, steady-state isoprene emission had a significantly lower temperature optimum than IspS and higher activation energy. The reversible temperature-dependent decrease in the rate of isoprene emission between 35°C and 44°C was caused by decreases in DMADP concentration, possibly reflecting reduced pools of energetic metabolites generated in photosynthesis, particularly of ATP. Strong control of isoprene temperature responses by the DMADP pool implies that transient temperature responses under fluctuating conditions in the field are driven by initial DMADP pool size as well as temperature-dependent modifications in DMADP pool size during temperature transients. These results have important implications for the development of process-based models of isoprene emission.
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