Simultaneous leaf- and ecosystem-level fluxes of volatile organic compounds from a poplar-based SRC plantation

The second technique involved trapping the VOCs emitted from leaves followed by gas chromatography-mass spectrometry (GC-MS) analysis. These leaf-level measurements showed that emission of isoprene in adult leaves and of monoterpenes in juvenile leaves are widespread across poplar genotypes. Detection of isoprene oxidation products (iox) emission with leaf-level measurements confirmed that a fraction of isoprene may be already oxidized within leaves, possibly when isoprene copes with foliar reactive oxygen species (ROS) formed during warm and sunny days.