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. 2012 Mar 21;110(2):373–381. doi: 10.1093/aob/mcs049

Fig. 9.

Fig. 9.

(A) Final steps of GA1 biosynthesis and its inactivation. IAA supplied by the apical meristem controls the active GA1 level through the regulation of enzyme-encoding genes participating in the production of GA1. (B) Pea seedlings of the le mutant (the three seedlings on the right) which has a defective gene for GA 3-oxidase, as indicated in A, and its wild-type counterpart (the three seedlings on the left). (Adapted from Tanimoto, 2002.)