Fig. 5

Levels of transcripts of enzymes encoding enzymes involved in basal metabolism in E. globulus treated with OC kappa. Relative level of transcripts encoding the large subunit of ribulose-1,5-carboxylase/oxygenase (rbcL, a), glutamine synthase (gs1, b), glutamate dehydrogenase (gdh2, c), 5′-adenilylsulfate reductase (apr2, d) and O-acetylserine thiol-lyase (cysK, e) in control (open circles) and E. globulus trees treated with OC kappa at 1 mg mL^− 1 (black circles). Asterisks (*) represent significant differences (p < 0.05) between the level of transcripts at a certain week compared with the expression at the beginning of the experiments (week 0). The level of transcripts is expressed as 2^-ΔΔCt. Circles represent mean values of three independent experiments ±SD