Fig. 9From: Identification and functional characterization of three new terpene synthase genes involved in chemical defense and abiotic stresses in Santalum albumEffects of external stresses on activities of antioxidant enzymes in S. album. Six-month-old seedlings were sprayed with 1 mM MeJA or SA for 24 h or exposed to 4°C, 38°C or high light intensity (approx. 250 μmol m− 2 s− 1) for 12 h. Three measurements were averaged from the results of three replicated experiments. a: SOD, superoxide dismutase; b: CAT, catalase; c: POD, peroxidase; d: APX, ascorbate peroxidase. L, leaves; S, stems; R, roots. Significant differences were analyzed by a student’s t-test and indicated as *P < 0.05, **P < 0.01 and ***P < 0.001Back to article page