Iron uptake and loading into rice grains

Khurram Bashir, Yasuhiro Ishimaru, Naoko K. Nishizawa

Research output: Contribution to journalReview articlepeer-review

82 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)122-130
Number of pages9
JournalRice
Volume3
Issue number2-3
DOIs
Publication statusPublished - 2010 Sep

Keywords

  • Biofortification
  • Deoxymugineic acid
  • Iron
  • Nicotianamine
  • Rice
  • YSLs

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science

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