Expression of selected FIT-independent genes in <i>bhlh100/bhlh101</i> and wild-type backgrounds.

<p>Relative gene expression level of <i>bHLH038</i> (A), <i>bHLH039</i> (B), <i>ZIF</i> (C), and <i>MTP3</i> (D) in wildtype (WT) and <i>bhlh100/bhlh101</i> plants grown on 1/2 MS without iron (black) or in the presence of 100 µM Fe (white). Error bars indicate standard error (n = 3–4).