Fig. 1From: Increase in Iron and Zinc Concentrations in Rice Grains Via the Introduction of Barley Genes Involved in Phytosiderophore SynthesisThe biosynthetic pathway of mugineic acid family phytosiderophores (MAs) in graminaceous plants. SAM S-Adenosyl-methionine, NA nicotianamine, DMA 2′-deoxymugineic acid, MA mugineic acid, HMA 3-hydroxymugineic acid, epiHDMA 3-epihydroxy-2′-deoxymugineic acid, epiHMA 3-epihydroxymugineic acid, SAMS S-adenosyl-methionine synthetase, NAS nicotianamine synthase, NAAT nicotianamine aminotransferase, DMAS 2′-deoxymugineic acid synthase, IDS2 dioxygenase catalyzing the hydroxylation of three positions of DMA and MA, IDS3 dioxygenase catalyzing the hydroxylation of 2′-positions of DMA and epiHDMABack to article page