Gibberellin A12 + Oxoglutaric acid + Oxygen → Carbon dioxide + Gibberellin A53 + Succinic acid
Gibberellin A53 + Oxoglutaric acid + Oxygen → Carbon dioxide + Succinic acid + gibberellin A44 open lactone
Hydrogen Ion + Oxoglutaric acid + Oxygen + gibberellin A44 open lactone → Carbon dioxide + Gibberellin A38 + Succinic acid + Water
Oxoglutaric acid + Oxygen + gibberellin A44 open lactone → Carbon dioxide + Gibberellin A19 + Succinic acid + Water
Gibberellin A19 + Oxoglutaric acid + Oxygen → Carbon dioxide + Gibberellin A17 + Hydrogen Ion + Succinic acid
Gibberellin A19 + Oxoglutaric acid + Oxygen → 2 Carbon dioxide + Hydrogen Ion + Succinic acid + gibberellin A20
Oxoglutaric acid + Oxygen + gibberellin A20 → Carbon dioxide + Succinic acid + gibberellin A1
Gibberellin Biosynthesis II (Early C-13 Hydroxylation)