Figure 3.

nas4x-2 and frd3 Mutant Defects Were Compensated for by the Respective Induction of FRD3 and NAS Genes.

Gene expression levels of FRD3 (A) and NAS (B) genes in the roots and leaves of wild-type, nas4x-2, and frd3 plants, showing an induction of FRD3 in nas4x-2 roots and an induction of NAS1, NAS2, and NAS4 in frd3 roots (note that NAS3 is not expressed in roots). Gene expression was determined by quantitative RT-PCR (error bars are sd; n = 3; *P < 0.05 for the comparison nas4x-2 versus the wild type).