Publication details

Effect of 50 Hz magnetic fields on yeasts Saccharomyces cerevisae

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Year of publication 2005
Type Article in Periodical
Magazine / Source European Biophysics Journal
MU Faculty or unit

Faculty of Science

Field Biophysics
Keywords Yeast; proliferation; low-frequency magnetic field;Saccharomyces cerevisae
Description A 50 Hz magnetic field effect on the growth of yeasts Saccharomyces cerevisiae was studied. The cylindrical coil induced magnetic fields with inductions up to 10mT. Duration of exposure varied up to 24min. Exposure took place at laboratory temperature (20-23C) and the air ventilator maintained the temperature at the place of sample. We measured growth curves of yeasts in broth by spectrophotometer and the number of CFU (colony forming units) on solid soil. We found that magnetic field decreases the number of yeasts in broth, and slowed their growth down. The effect was stronger for stronger magnetic field inductions and for longer duration of exposure. On the other hand, only small decrease in comparison with control appeared during exposure on solid soil. It seems that the effect depends on the biological age of yeast culture. We observed bigger magnetic field effect after exposure in early stage of evolution of yeasts.
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