| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2048513 | FEBS Letters | 2012 | 4 Pages |
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 GSH g−1 FW is required for full induction of AtFer1 gene expression in response to iron.
► Iron excess produces a NO burst involved in the control of some genes expression. ► In Arabidopsis this NO burst occurs inside chloroplasts. ► A leaf GSH concentration threshold is required for this iron mediated NO production. ► Expression of the ferritin AtFer1 gene occurs above this GSH threshold.
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Authors
Brigitte Touraine, Jean-François Briat, Frédéric Gaymard,