How Leaf Type Affects Isoprene Emissions in Amazon Trees
Author Information
Author(s): Robin Michelle, Römermann Christine, Niinemets Ülo, Gershenzon Jonathan, Huang Jianbei, Nelson Bruce W., Taylor Tyeen C., de Souza Vinícius Fernandes, Pinho Davieliton, Falcão Lucas, Lacerda Caroline, Duvoisin Júnior Sérgio, Schmidt Axel, Gomes Alves Eliane
Primary Institution: Max Planck Institute for Biogeochemistry
Hypothesis
A higher presence and/or magnitude of isoprene emissions would be associated with a brevideciduous behavior, while a higher presence and/or magnitude of terpene storage would be associated with evergreen trees.
Conclusion
Isoprene emissions and terpene storage did not significantly vary between evergreen and brevideciduous trees, but interactions between traits and leaf phenological types drive variations in isoprene emissions.
Supporting Evidence
- Isoprene emissions were detected in 88 trees (50%) and monoterpene storage in 78 trees (46%).
- Isoprene emission rates were significantly higher in brevideciduous trees with higher diversity of stored sesquiterpenes.
- Evergreen trees had a higher occurrence of isoprene non-emitters compared to brevideciduous trees.
Takeaway
This study looked at how different types of leaves on Amazon trees affect the amount of isoprene they release, finding that leaf type influences isoprene emissions and storage of other compounds.
Methodology
Leaf-level isoprene emission capacity and leaf functional traits were measured for 175 trees from 124 species in a central Amazon forest.
Potential Biases
Potential bias due to the focus on specific tree species and the challenges of measuring emissions in remote locations.
Limitations
The study focused on individual-level analyses and could not characterize species-level variation due to the number of replicates available.
Participant Demographics
The study included 175 trees from 124 species of angiosperms, with a mix of brevideciduous and evergreen types.
Statistical Information
P-Value
0.04
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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