Figure 4.

Gibberellic acid (GA) biosynthesis and catabolism along the growth zone of B104 leaves. GA metabolites along the growth zone under mild drought and well‐watered conditions (grey and black, respectively). Values are average ± standard error (n = 5). The expression levels of enzymes under mild drought and well‐watered conditions are indicated in dark and light red, respectively. Expression values are represented as values relative to the expression value at the leaf base in well‐watered plants. Values are average ± standard error (n = 3). CPS, ent‐copalyl diphosphate synthase; KS, ent‐kaurene synthase; KO, ent‐kaurene oxidase; KAO, ent‐kaurenoic acid oxidase.