Iron Uptake and Loading into Rice Grains

By Khurram Bashir, Yasuhiro Ishimaru, N. Nishizawa. Rice, 2010

129 citations recorded by the source corpus.

Iron (Fe) is an important micronutrient for living organisms. Fe deficiency severely impairs plant growth and is a widespread human dietary problem, with particularly high numbers of affected children and females. Rice (Oryza sativa) is a source of energy for more than half of the world’s population. Thus, understanding the mechanisms of Fe uptake and translocation in rice is of utmost importance in the development of rice varieties that are tolerant to low Fe availability and with high seed levels of Fe. In recent years, the mechanisms underlying Fe transport and homeostasis have been revealed, providing opportunities to increase the Fe content of rice grain. As excess Fe is toxic to cells, plants have developed sophisticated mechanisms to control Fe flow, making it difficult to alter Fe transport. Thus, choosing appropriate chelators and Fe transporters driven by appropriate promoters seems to be the key in developing rice that is tolerant to low Fe availability and which accumulates high grain levels of Fe. Many recent studies have been aimed at increasing the Fe content of rice. Here, we summarize these efforts and review recent progress in understanding the mechanisms of Fe transport.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/5ffae818c6a043b55cb7d3cca06baea5fcb2c4eb

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In Plant Science

1. N. Nishizawa
2. Khurram Bashir
3. Yasuhiro Ishimaru
4. H. Nakanishi
5. S. Shankhdhar
6. D. Shankhdhar

Citations in the corpus

• Zn Uptake and Translocation in Rice Plants (2011, background): “In the scutellum, Zn accumulates to the endosperm similarly to Fe (Takahashi et al. 2009; Bashir et al. 2010).”
• Enhancing grain iron content of rice by the application of plant growth promoting rhizobacteria (2018, background): “Finally, Fe can readily accept and donate electrons, making high concentration of Fe toxic as it can lead to production of reactive oxygen species (Bashir et al. 2010).”
• Rice phenolics efflux transporter 2 (PEZ2) plays an important role in solubilizing apoplasmic iron (2011, background): “Moreover, many genes involved in cellular and subcellular metal transport and homeostasis have been reported (Bashir et al. 2010; Bashir et al. 2011; Ogo et al. 2007; Ogo et al. 2011; Bashir et al. 2007); however, the components of phenolics synthesis and secretion have not been well characterized.”