Fig. 4From: Genome-wide analysis of the NAAT, DMAS, TOM, and ENA gene families in maize suggests their roles in mediating iron homeostasisExpression profiles of ZmNAAT, ZmDMAS, ZmTOM, and ZmENA genes in response to different iron levels. The maize seedlings were cultured to the three-leaf stage in standard Hoagland solution and then transferred to Hoagland solution with 0 or 500 μM Fe for deficiency (Fe--) and Fe excess (Fe++) treatments, respectively. The shoots (sh) and roots (root) were harvested at 0, 24, 48, and 96 h after treatments. Maize Actin1 was used to normalize relative gene expression. The error bars indicate standard deviationsBack to article page