Biological effects of static magnetic fields and zinc isotopes on E. coli bacteria

The sensitivity of intracellular enzymatic systems to static magnetic fields (SMFs) and magnetic isotopes has been shown both in vitro and in vivo. These effects are determined by the spin-dependent magnetosensitive stages of enzymatic reactions. The search for experimental evidence of the combined effect of SMFs and zinc magnetic isotope ⁶⁷ Zn on the intracellular processes on Escherichia coliEscherichia coli bacteria has taken place in vivo. The joint effects of external SMFs and magnetic zinc isotope ⁶⁷ Zn on vital functions of E.coli bacteria have been shown experimentally. The combined effect of isotope ⁶⁷ Zn and weak SMFs (25-35 mT) causes a 2-4-fold increase in the colony-forming ability and growth rate constants of bacteria E. coli compared with nonmagnetic zinc isotopes ^64,66 Zn. The effects of SMFs in the range of 2.2-8 mT were detected for all bacteria, regardless of zinc isotope content in the media. An increase in ATP concentration in E. coli was detected for bacteria grown on a medium with the magnetic isotope ⁶⁷ Zn in the SMF range of 2.2-4.2 mT. The major elements' (Na, K, Ca, Mg, P, Zn) metabolism in E. coli depend on the intensity of SMFs and zinc isotopes. These data confirm the existence of intracellular enzymatic processes stages that are sensitive to SMFs and magnetic moments of atomic nuclei. It is important to note that magnetic zinc ⁶⁷ Zn and magnesium ²⁵ Mg isotopes induce effects on viability of E. coli in different SMF ranges. Bioelectromagnetics. 40:62-73, 2019. © 2018 Wiley Periodicals, Inc.