Isoprene labeling is corrected for the unlabeled signals presumed to come from MEcDP exchange between the plastid and cytosol. The horizontal line in the box is the median, the square in the box is the mean, the whiskers show 1.5 times the inter quartile range, the box shows 25–75% of the range, and diamonds show outliers, if any. Hexose-P is glucose 6-phosphate and fructose 6-phosphate and pentose-P is ribulose 5-phosphate and xylulose 5-phosphate.