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. 2013 Apr 10;162(2):927–939. doi: 10.1104/pp.113.216564

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Figure 8. — Schematic diagram of zinc and cadmium transport by OsHMA2 in root and nodes. A, Function of OsHMA2 in the roots. OsHMA2 localized at the pericycle cells transports zinc and cadmium from the apoplast to the symplast to facilitate translocation via the phloem. B, Function of OsHMA2 in nodes. OsHMA2 localized in the phloem parenchyma and companion cells of both enlarged and diffuse vascular bundles in the nodes functions to load zinc and cadmium to the phloem for the preferential distribution to the upper nodes and panicles.