Unexpected beneficial effects of arsenic on corn roots grown in culture

Grant Evans, Julyette Evans, Andrea Redman, Nancy Johnson, Richard D. Foust

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Corn (Zea mays) roots were grown in culture on modified Strullu-Roman medium in two separate experiments. Roots were exposed to one of four treatments combining arsenic (100μg L-1 or 0.0μg L-1) and phosphorous (4.8 mg L-1 or 0.0 mg L-1). The cultures were allowed to grow for 18 days or 21 days before they were used for quantitative measurement of root mass, root length, number of branches, and branch length. Results indicate roots grown in medium lacking phosphate but containing arsenic were longer and had greater mass than roots grown in medium with only phosphate. The data presented here suggest that arsenic at low levels might be beneficial for root development.

Original languageEnglish (US)
Pages (from-to)167-170
Number of pages4
JournalEnvironmental Chemistry
Volume2
Issue number3
DOIs
StatePublished - Nov 18 2005

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Keywords

  • Arsenic
  • Biological monitoring (plants)
  • Contaminant uptake
  • Phytoremediation

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Environmental Chemistry
  • Geochemistry and Petrology

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