Molecular biological investigation and nutritional application of iodine dynamics in plants

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Iodine deficiency is among the most important micronutrient deficiency in the world. The purpose of this study was to develop iodine-rich crops for enhanced delivery of iodine. Previously, we had increased iodine content in Arabidopsis tissues by disruption of AtHOL1 gene whose product methylates iodide ions making volatile methyl iodide. By using this approach, we succeeded in increasing iodine content in rice tissues such as brown rice for the first time.