The control of boron accumulation by two genotypes of wheat

Trevor P. Garnett*, Mark Tester, Ross O. Nable

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The mechanism of boron (B) uptake in wheat was studied using two genotypes with known differences in their ability to accumulate B. Influx and efflux of B was measured in the roots of intact 21 d old plants. Roots grown in 15 μM B, when transferred to solutions containing 1m M B showed a rapid increase in B content for up to 60 min, after which no further increase was evident up to 4 h. No genotypic difference in B influx was apparent over these time periods. Roots grown in 1m M B for 7 d and then rinsed in B-free solutions quickly lost most of B that they contained within 1 hour; little further efflux was observed over the following three hours. As with the influx, no genotypic difference in B flux was evident. It is suggested that the lack of genotypic difference in the short-term B fluxes could be due to a masking effect of extracellular B bound in the cell walls of the roots.

Original languageEnglish (US)
Pages (from-to)305-308
Number of pages4
JournalPlant and Soil
Volume155-156
Issue number1
DOIs
StatePublished - Oct 1 1993

Keywords

  • Triticum aestivum L.
  • boron
  • genotypic variation
  • toxicity
  • uptake
  • wheat

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

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