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Detoxifying aluminium with buckwheat

Author

Listed:
  • Jian Feng Ma

    (Research Institute for Bioresources, Okayama University)

  • Shao Jian Zheng

    (Research Institute for Bioresources, Okayama University)

  • Hideaki Matsumoto

    (Research Institute for Bioresources, Okayama University)

  • Syuntaro Hiradate

    (National Institute of Agroenvironmental Sciences, Tsukuba Norin Danchi)

Abstract

Aluminium toxicity is a major problem limiting crop production in acid soils, which account for around 40% of the world's arable land1. Some plants have developed strategies to avoid or tolerate aluminium, including buckwheat (Fagopyrum esculentum Moench cv. Jianxi), which has a high resistance to aluminium, but the mechanism responsible for resistance is not known. We have found that the aluminium-resistant Juanxi cultivar of buckwheat secretes oxalic acid from its roots specifically and quickly in response to aluminium stress. Further, aluminium accumulates in the leaf cells in a non-toxic Al-oxalate complex with a 1:3 ratio of aluminium to oxalic acid.

Suggested Citation

  • Jian Feng Ma & Shao Jian Zheng & Hideaki Matsumoto & Syuntaro Hiradate, 1997. "Detoxifying aluminium with buckwheat," Nature, Nature, vol. 390(6660), pages 569-570, December.
    • Handle: RePEc:nat:nature:v:390:y:1997:i:6660:d:10.1038_37518
    DOI: 10.1038/37518
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