In the first series of experiments the roots exposed to the electric field were growing, gravitropically downward.
When the field was disconnected, the roots were allowed to grow further and they continued evidently undisturbed growth downward.
Anatomical observations of the roots sampled immediately after the electric field had been shut off and after 24 h from that moment showed that there was no variation in the RAM cellular structure in comparison with the control (Fig. 3A, B).