Table I.
GA content of wild-type Columbia and two pkl lines Nos. indicate nanograms of different GAs per gram dry wt. C20-GAs are listed above the dotted line, whereas C19-GAs are listed below the dotted line. GAs from the 13-hydroxlation pathway GA53 → GA44 → GA19 → GA20 → GA1 → GA8 and from the non-13-hydroxylation pathway GA12 → GA15 → GA24 → GA9 → GA4 → GA34 were analyzed. GA1 and GA4 are bioactive GAs, whereas the other GAs are precursors or deactivated GAs.
| GAs | WT | pkl-1 | pkl-3 |
|---|---|---|---|
| 13-OH-GAs | |||
| GA53 | 9.7 | 2.8 | 2.4 |
| GA44 | 1.3 | 0.3 | 0.3 |
| GA19 | 11.6 | 7.1 | 6.1 |
| GA20 | 0.1 | 0.4 | 0.2 |
| GA1 | 0.2 | 0.5 | 0.4 |
| GA8 | 14.2 | 21.1 | 18.6 |
| Non-13-OH-GAs | |||
| GA9 | 0.9 | 2.2 | 1.6 |
| GA4 | 1.1 | 1.8 | 2.2 |