Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species
Plant responses to stress, inter-organismal signaling, and atmospheric chemistry are significantly influenced by leaf volatile isoprenoid (VI) emissions (e.g., isoprene and monoterpenes). Despite their critical roles in ecology and the atmosphere, we have little understanding of whether and how VI e...
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1561316/full |
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| author | Michelle Robin Michelle Robin Eliane Gomes Alves Eliane Gomes Alves Tyeen C. Taylor Tyeen C. Taylor Débora Pinheiro Oliveira Sérgio Duvoisin José Francisco C. Gonçalves Jochen Schöngart Florian Wittmann Maria T. F. Piedade Susan Trumbore Juliana Schietti Juliana Schietti |
| author_facet | Michelle Robin Michelle Robin Eliane Gomes Alves Eliane Gomes Alves Tyeen C. Taylor Tyeen C. Taylor Débora Pinheiro Oliveira Sérgio Duvoisin José Francisco C. Gonçalves Jochen Schöngart Florian Wittmann Maria T. F. Piedade Susan Trumbore Juliana Schietti Juliana Schietti |
| author_sort | Michelle Robin |
| collection | DOAJ |
| description | Plant responses to stress, inter-organismal signaling, and atmospheric chemistry are significantly influenced by leaf volatile isoprenoid (VI) emissions (e.g., isoprene and monoterpenes). Despite their critical roles in ecology and the atmosphere, we have little understanding of whether and how VI emissions vary with axes of plant functional variation. Understanding these relationships is particularly important in tropical forests, which emit more VIs into the atmosphere than any other biome, and where high species diversity necessitates the imputation of plant traits based on functional and evolutionary relationships. Here, we investigated how VI emissions varied with functional trait axes of fast-slow carbon economics strategies (CES) in Central Amazon Forest woody species. We measured leaf-level isoprene and monoterpene emission capacity (Ec; emission measured under standard conditions of photosynthetically active radiation of 1000 µmol m-2 s-1 and leaf temperature of 30 ˚C), and 12 leaf and four stem functional traits for 91 trees from 31 species of angiosperm distributed across different vegetation types: non-flooded upland, white sand, and ancient non-flooded river terrace forests. Principal component analysis (PCA) of functional traits revealed two partially independent main axes of CES: a first axis of leaf strategies and a second of mixed leaf/stem strategies. The capacity to emit monoterpenes was observed in 27 species, and monoterpene emitters occupied the whole range of fast-slow strategies, but magnitudes of monoterpene Ec increased toward faster leaves. The capacity to emit isoprene was observed in 14 species, and isoprene emitters tended to be positioned toward slower leaf/stem strategies, with magnitudes of isoprene Ec also increasing toward slower leaves/stems. Our results highlight the importance of understanding leaf-level emissions to accurately estimate VI fluxes and provide a holistic view of emissions within CES on different organ-system levels. This shows a direction for improving current modeling estimates, which have simplified plant functional type representations and are poorly developed for compounds other than isoprene in the tropics. A more mechanistic representation of plant functional types based on forest functional compositions can reduce modeling emission uncertainties and contribute to understanding the roles of VIs within forest-atmosphere interactions, atmospheric chemistry, and the carbon cycle. |
| format | Article |
| id | doaj-art-c25efa3d399c4d8a83a64be8f3366cc6 |
| institution | Kabale University |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj-art-c25efa3d399c4d8a83a64be8f3366cc62025-08-20T03:48:27ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-05-011610.3389/fpls.2025.15613161561316Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody speciesMichelle Robin0Michelle Robin1Eliane Gomes Alves2Eliane Gomes Alves3Tyeen C. Taylor4Tyeen C. Taylor5Débora Pinheiro Oliveira6Sérgio Duvoisin7José Francisco C. Gonçalves8Jochen Schöngart9Florian Wittmann10Maria T. F. Piedade11Susan Trumbore12Juliana Schietti13Juliana Schietti14Department of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, GermanyPost-Graduation Program in Ecology, National Institute of Amazonian Research, Manaus, BrazilDepartment of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, GermanyPost-Graduation Program in Climate and Environment, National Institute of Amazonian Research, Manaus, BrazilDepartment of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI, United StatesBiology Department, University of Miami, Coral Gables, FL, United StatesPost-Graduation Program in Climate and Environment, National Institute of Amazonian Research, Manaus, BrazilDepartment of Chemistry, University of the State of Amazonas, Manaus, BrazilCoordination of Environmental Dynamics, National Institute of Amazonian Research, Manaus, BrazilCoordination of Environmental Dynamics, National Institute of Amazonian Research, Manaus, BrazilDepartment of Wetland Ecology, Karlsruhe Institute of Technology, Rastatt, GermanyCoordination of Environmental Dynamics, National Institute of Amazonian Research, Manaus, BrazilDepartment of Biogeochemical Processes, Max Planck Institute for Biogeochemistry, Jena, GermanyPost-Graduation Program in Ecology, National Institute of Amazonian Research, Manaus, BrazilDepartment of Biology, Federal University of Amazonas, Manaus, BrazilPlant responses to stress, inter-organismal signaling, and atmospheric chemistry are significantly influenced by leaf volatile isoprenoid (VI) emissions (e.g., isoprene and monoterpenes). Despite their critical roles in ecology and the atmosphere, we have little understanding of whether and how VI emissions vary with axes of plant functional variation. Understanding these relationships is particularly important in tropical forests, which emit more VIs into the atmosphere than any other biome, and where high species diversity necessitates the imputation of plant traits based on functional and evolutionary relationships. Here, we investigated how VI emissions varied with functional trait axes of fast-slow carbon economics strategies (CES) in Central Amazon Forest woody species. We measured leaf-level isoprene and monoterpene emission capacity (Ec; emission measured under standard conditions of photosynthetically active radiation of 1000 µmol m-2 s-1 and leaf temperature of 30 ˚C), and 12 leaf and four stem functional traits for 91 trees from 31 species of angiosperm distributed across different vegetation types: non-flooded upland, white sand, and ancient non-flooded river terrace forests. Principal component analysis (PCA) of functional traits revealed two partially independent main axes of CES: a first axis of leaf strategies and a second of mixed leaf/stem strategies. The capacity to emit monoterpenes was observed in 27 species, and monoterpene emitters occupied the whole range of fast-slow strategies, but magnitudes of monoterpene Ec increased toward faster leaves. The capacity to emit isoprene was observed in 14 species, and isoprene emitters tended to be positioned toward slower leaf/stem strategies, with magnitudes of isoprene Ec also increasing toward slower leaves/stems. Our results highlight the importance of understanding leaf-level emissions to accurately estimate VI fluxes and provide a holistic view of emissions within CES on different organ-system levels. This shows a direction for improving current modeling estimates, which have simplified plant functional type representations and are poorly developed for compounds other than isoprene in the tropics. A more mechanistic representation of plant functional types based on forest functional compositions can reduce modeling emission uncertainties and contribute to understanding the roles of VIs within forest-atmosphere interactions, atmospheric chemistry, and the carbon cycle.https://www.frontiersin.org/articles/10.3389/fpls.2025.1561316/fullvolatile isoprenoidsplant functional traitsplant functional strategiesAmazon forestBVOCs |
| spellingShingle | Michelle Robin Michelle Robin Eliane Gomes Alves Eliane Gomes Alves Tyeen C. Taylor Tyeen C. Taylor Débora Pinheiro Oliveira Sérgio Duvoisin José Francisco C. Gonçalves Jochen Schöngart Florian Wittmann Maria T. F. Piedade Susan Trumbore Juliana Schietti Juliana Schietti Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species Frontiers in Plant Science volatile isoprenoids plant functional traits plant functional strategies Amazon forest BVOCs |
| title | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species |
| title_full | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species |
| title_fullStr | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species |
| title_full_unstemmed | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species |
| title_short | Leaf isoprene and monoterpene emissions vary with fast-slow carbon economics strategies in central Amazon woody species |
| title_sort | leaf isoprene and monoterpene emissions vary with fast slow carbon economics strategies in central amazon woody species |
| topic | volatile isoprenoids plant functional traits plant functional strategies Amazon forest BVOCs |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1561316/full |
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