Response of gerbera jamesonii acrocarpous callus stimulated by mechanical vibration

Applying different mechanical vibrations, 2-3 Hz frequency, to stimulate the gerbera jamesonii acrocarpous callus, we found that it increases the growth rate and the content of soluble protein but decreases the fluidity of cell membranes. When the frequency was greater than 4 Hz, the effect was contrary to that of 2-3 Hz. In this paper, we also prove the double effects in the plant callus growth and explore the mechanism of the double effects in physical stimulation.