Fig. 5

Detection of CYP3RNA in barley roots at different time points after spray application. Amount of CYP3RNA in the roots of barley plants 24 h, 48 h and 72 h after spray treatment, respectively. The relative amount of sprayed CYP3RNA measured by qPCR decreased over time in leaves and increased in roots compared to mock-sprayed control leaves. Bars represent mean values ± SEs of three independent experiments. The reduction of CYP3RNA vs. mock-sprayed leaves was statistically significant (*P < 0.05; Student’s t-test)