The Influence of Extremely Weak Alternating Magnetic Fields on the Regeneration of Planarians and the Gravitropic Response of Plants

摘要

The influence of extremely weak alternating magnetic fields (EW AMF) directed collinearly to the static Earth magnetic field on the rate of regeneration of planarians and the rate of gravitropic response in the stem segments of flax has been studied. The value of bioeffects of EW AMF is determined by the parameter γB_(AC)/f, where γ is the gyromagnetic ratio of the magnetic moments induced by the orbital movements of electrons in atoms, and B_(AC) and f correspond to magnetic induction and frequency of the alternating magnetic component. It was shown that the magnitude of bioeffects depends on the amplitude (at fixed 1000 Hz – frequency) and frequency (at fixed 192 nT – amplitude) of the alternating component. Maxima of bioeffects are observed at γB_(AC)/f = 0.9; 2.75, and minor maxima γB_(AC)/f = 4.5; 6.1. The bioeffects are absent at γB_(AC)/f =1.8, 3.8, 5.3, 6.7. The positions of the maxima and minima of bioeffects correspond to the theoretical prediction (at γ = 14000 Hz/μT). Primary targets for the EW AMF of this type are the magnetic moments induced by the orbital movements of electrons in atoms.