Figure 5.

Characteristic responses of isoprene emission and net assimilation rates and stomatal conductance to changes in ambient CO₂ concentration (A) and acetaldehyde emission (B) in a hybrid aspen leaf before (0–1,800 s) and after (1,800–4,000 s) application of 150 μm of the specific PEPC inhibitor diethyl oxalacetate (DOA), and DOA dose response at ambient CO₂ concentration of 400 μmol mol⁻¹ (C). Data presentation is as in Figure 3.