Buckwheat accumulates aluminum in leaves but not in seeds

Ren Fang Shen, Rong Fu Chen, Jian Feng Ma

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Buckwheat (Fagopyrum esculentum Moench. cv Jianxi) is highly resistant to Al stress and is known to be an Al-accumulator. Pot experiments were carried out in a greenhouse to investigate the accumulation of Al in leaves and seeds of buckwheat. Plants were grown for 12 weeks in a strong acid soil amended with or without CaCO3 at a rate of 1 g kg-1 soil. Old leaves accumulated as much as 10 g kg-1 Al of dry weight when the plants were grown in the acid soil, while the Al concentrations in leaves immediately adjacent to seeds, seed coats, and embryos were, on average, 4516, 41.2 and 7.7 mg kg-1, respectively. The Al concentration significantly decreased in leaves when the plants were grown in the limed soil, and the Al concentrations in leaves immediately adjacent to seeds, seed coats, and embryos were, on average, 1586, 21.3 and 3.1 mg kg-1, respectively. These results show that seeds accumulate much less Al than buckwheat leaves. The underlying mechanisms are discussed.

Original languageEnglish
Pages (from-to)265-271
Number of pages7
JournalPlant and Soil
Volume284
Issue number1-2
DOIs
Publication statusPublished - Jun 1 2006

Keywords

  • Accumulation (Al)
  • Al content in seed
  • Al transport
  • Buckwheat

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

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