Biogenic Volatile Organic Compound and Respiratory CO2 Emissions after 13C-Labeling: Online Tracing of C Translocation Dynamics in Poplar Plants
Figure 6
Isoprene emission of intact poplar plants and incorporation of label of upon 13CO2 feeding.
Total isoprene emission (black symbols), its 13C incorporation (black line) and isotopic composition (m74, light blue; m73, magenta; m72, dark blue; m71, yellow; m70, green; m69, red) from (A) the apex, (B) a fully expanded leaf, (C) 13CO2-labeled mature leaf, (D) and the root system of intact plants. The labeling period is shown in orange, stress (absence of CO2) is indicated by a blue background, and dark conditions are marked in grey. Details of the experimental phases can be found in the Materials and Methods section. Data represent the mean of 3 experiments ± s.e. (omitted for isotopic composition).