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GSH threshold requirement for NO-mediated expression of the Arabidopsis AtFer1 ferritin gene in response to iron.
Article de revue   Open Access   Avec comité de lecture

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

Brigitte Touraine, Jean-François Briat et Frédéric Gaymard
FEBS Letters, Vol.586(6), pp.880-3
23/03/2012
DOI: https://doi.org/10.1016/j.febslet.2012.02.016
PMID: 22449975

Résumé

Oxidative stress Signaling Chloroplasts Thiols Arabidopsis Arabidopsis Proteins Ferritins Gene Expression Regulation, Plant Genes, Plant Glutathione Iron Nitric Oxide Plant Leaves
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.

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