Figure 4 : Dynamic leaf gas exchange responses of methanol (MeOH), acetic acid (AA), AA/MeOH, net photosynthesis (Anet), transpiration (E), and stomatal conductance (gs) from detached hydrated poplar branches as a function of (a-c) leaf internal CO2concentrations (Ci), (d-f) incident Photosynthetically Active Radiation (PAR) flux, and (g-i) leaf temperature. Shaded regions indicate dark conditions inside the leaf chamber.