Figure 5.

Altering expression of PPSB genes affects sulfur metabolism in the light. A, OAS relative contents in c-psp1 and ts-pgdh1 AP and roots as compared with control wild-type plants (WT) or wild type transformed with the EV. B, Relative Cysteine (Cys) and glutathione steady-state contents. C, Cys and glutathione distribution between roots and AP. Samples were collected in the middle of the light period. Values represent the means ± se; n > 5 pools of 30 plants. Transgenic material proceeded from pools of two different transgenic events. *Significantly different to control line (P < 0.05, Student’s t test).