Fig. 2

Evolution of fluorescence parameters in WT and hpCAD poplar lines subjected to dilute acid pretreatment for CSFs from 0–4. A Change in excitation wavelength for maximum fluorescence intensity; B change in emission wavelength for maximum fluorescence intensity; C change in fluorescence intensity (arbitrary unit, AU). Single samples for CSF 1.2, 3.5 and 3.7, triplicate samples for control (CSF 0), and CSF 2.4 and 3.0