Figure 5.

QRT-PCR analysis of transcripts encoding mitochondrial proteins in transgenic WRKY overexpression or knockout/knockdown lines. Wild-type (WT) and mutant plants with increased or reduced expression of WRKY transcription factors were grown in soil for 3 weeks and then treated with AA for 4 h in biological duplicate or with HL for 1 h in biological triplicate. Samples were harvested, and mRNA levels were measured using QRT-PCR. Asterisks indicate statistically significant differences (P < 0.05) compared with the expression in Col-0 within the same treatment.