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Articles by Efstratios Bourtsoukidis
Mirror image molecules expose state of rainforest stress - Communications Earth & Environment
Abstract Monoterpenes are key to plant communication and defence against biotic (e.g., herbivory) and abiotic (e.g., heat, drought) stress. Chiral monoterpenes, like alpha-pinene, exist as mirror image pairs, known as enantiomers. Enantiomers have the same atmospheric reactivity, but are produced and emitted by different enzymes and internal leaf mechanisms. Abiotic stress can alter their relative emissions, suggesting enantiomer ratios could indicate stress severity.
Unaccounted impacts of diterpene emissions on atmospheric aerosol loadings - Communications Earth & Environment
Abstract Diterpenes, found in trees, have been overlooked in atmospheric chemistry due to their low volatility and presumed negligible emissions. However, advances in sampling and analytical methods now allow for their detection in the gas phase. Here we quantify diterpene emission factors and evaluate their role in secondary organic aerosol formation.
Environmental Change Is Reshaping the Temperature Sensitivity of Sesquiterpene Emissions and Their Atmospheric Impacts
1 Introduction Sesquiterpenes (SQTs; C15H24) are highly reactive biogenic volatile organic compounds (BVOCs) emitted primarily by global vegetation (Duhl et al. 2008), with additional contributions from soils (Bourtsoukidis et al. 2018) and cryptogamic organisms (Edtbauer et al. 2021). Despite their low atmospheric abundance at parts-per-trillion (ppt) levels, they play an outsized role in atmospheric chemistry.
High temperature sensitivity of monoterpene emissions from global vegetation - Communications Earth & Environment
Abstract Terrestrial vegetation emits vast amounts of monoterpenes into the atmosphere, influencing ecological interactions and atmospheric chemistry. Global emissions are simulated as a function of temperature with a fixed exponential relationship (β coefficient) across forest ecosystems and environmental conditions.
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