Response of bioluminescence in Arabidopsis aequorin mutant ( Col0-1 Aeq Cy+ ) and wild type plants to different combinations of static and modulated (50 Hz) MF/EMF. These were achieved by varying the fieldstrength around the optimized ICR condition for Ca2+ (BDC = 65 μT, BAC = 5 μT, f = 50 Hz). The 30 min. integral values are normalized to the corresponding 30 min. integral of the optimized condition. Experimental conditions: EMF of BAC < 0.1 (background noise), 1, 5, and 20 μT were used with a MF of 65 μT (left 4 bars), and MF of BDC <2 (background), 55, 65, and 75 μT were combined with an EMF amplitude of 5 μT (right 4 bars). The data for the Arabidopsis wild type plants at the optimized condition are labelled as WT. Standard deviations are shown by the vertical bars.