Delineating the future of iron biofortification studies in rice: challenges and future perspectives

Future iron biofortification studies in rice should focus not only on increasing grain iron concentration but also on other agronomic, quality, and iron bioavailability aspects. Abstract Iron (Fe) deficiency in humans is a widespread problem worldwide. Fe biofortification of rice (Oryza sativa) is a...

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Bibliographic Details
Published in:Journal of experimental botany 2021-03, Vol.72 (6), p.2099-2113
Main Authors: Kawakami, Yuta, Bhullar, Navreet K
Format: Article
Language:English
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Summary:Future iron biofortification studies in rice should focus not only on increasing grain iron concentration but also on other agronomic, quality, and iron bioavailability aspects. Abstract Iron (Fe) deficiency in humans is a widespread problem worldwide. Fe biofortification of rice (Oryza sativa) is a promising approach to address human Fe deficiency. Since its conceptualization, various biofortification strategies have been developed, some of which have resulted in significant increases in grain Fe concentration. However, there are still many aspects that have not yet been addressed in the studies to date. In this review, we first overview the important rice Fe biofortification strategies reported to date and the complications associated with them. Next, we highlight the key outstanding questions and hypotheses related to rice Fe biofortification. Finally, we make suggestions for the direction of future rice biofortification studies.
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/eraa446