Fig. 7. Root transcriptional qRT-PCR profile of selected genes
related to sulphur metabolism in Col-0, cad2-1 , pad2-1 ,rax1-1 and cad1-3 Arabidopsis treated with 0 or 3 µM Hg
for 72 h. Values are presented as log2-fold change of
Hg-treated plants relative to control plants of each genotype.
Statistically down-regulated genes when compared to Col-0 (at p
< 0.05) are represented as green boxes, whereas grey boxes
indicate no statistical difference. Data of genes encoding transcription
factors
()
are shown in the inset box (). Light blue boxes highlight genes
differentially expressed. See quantitative values and statistics in
Supplementary Table 4.