Fig 8. Effects of GSH, BSO and HRW alone or their combinations on gene expression of GCS, GS, GR1, GR2, GPX and GST in the roots of Brassica campestris upon Cd or none stress.

Expression levels of corresponding genes are presented relative to the control samples, with normalized against expression of two internal reference genes in each sample. Data are means ± SE from three independent experiments. Bars with different letters are significantly different at P<0.05 according to Duncan’s multiple range test.