Fig. 1From: Iron Uptake and Loading into Rice GrainsBiosynthetic pathway of MAs in rice. Three molecules of S-adenosyl methionine are combined by OsNAS1–3 to form NA. The amino group of NA is transferred by OsNAAT1, and the resultant 3′-keto intermediate is reduced to DMA by OsDMAS1. The subsequent steps differ with the plant species and cultivar.Back to article page