GSH threshold requirement for NO-mediated expression of the Arabidopsis AtFer1 ferritin gene in response to iron

FEBS Lett. 2012 Mar 23;586(6):880-3. doi: 10.1016/j.febslet.2012.02.016. Epub 2012 Feb 24.

Abstract

Iron treatment of Arabidopsis cultured cells promotes a rapid NO burst within chloroplasts, necessary for up-regulation of the AtFer1 ferritin gene expression. The same occurs in Arabidopsis leaf chloroplasts, and is dependent upon the GSH content of plants. A leaf GSH concentration threshold between 10 and 50 nmol GSHg(-1) FW is required for full induction of AtFer1 gene expression in response to iron.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / metabolism*
  • Arabidopsis Proteins* / genetics
  • Arabidopsis Proteins* / metabolism
  • Ferritins* / genetics
  • Ferritins* / metabolism
  • Gene Expression Regulation, Plant*
  • Genes, Plant*
  • Glutathione / metabolism*
  • Iron / metabolism
  • Nitric Oxide / metabolism*
  • Plant Leaves / genetics
  • Plant Leaves / metabolism

Substances

  • Arabidopsis Proteins
  • Nitric Oxide
  • Ferritins
  • Iron
  • Glutathione