Figure 1.
Pathways of gibberellin biosynthesis: two putative pathways of gibberellin biosynthesis, the early 13-hydroxylation and early non-hydroxylation pathways that are likely utilized in vegetative tissues of many higher plants [48,54,70]. The GA9→GA20 and GA4→GA1 conversions are based on a limited number of examples in the literature, and thus may not be commonplace. Compliments of Ruichuan Zhang and Richard Pharis (University of Calgary, Calgary, AB, Canada).