Effects of low-frequency magnetic fields on the viability of yeast Saccharomyces cerevisiae

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Authors

NOVÁK Jan STRAŠÁK Luděk FOJT Lukáš SLANINOVÁ Iva VETTERL Vladimír

Year of publication 2007
Type Article in Periodical
Magazine / Source Bioelectrochemistry
MU Faculty or unit

Faculty of Medicine

Citation
Field Microbiology, virology
Keywords Low-frequency electromagnetic field; Yeast; Growth curve; CFU number; Saccharomyces cerevisiae
Description A 50 Hz magnetic field effect on the growth of yeasts Saccharomyces cerevisae was studied. The cylindrical coil induced magnetic fields with inductions up to 10 mT. Duration of exposure varied up to 24 min. Exposure took place at laboratory temperature and the air ventilator maintained the temperature at the place of the sample. We measured the growth curves of yeasts in broth and we calculated the number of CFU (colony forming units) on solid soil. We found that magnetic field decreases the number of yeasts, and slowed down their growth. The result is similar to the experiments with bacteria E. coli, S. aureus and L. adecarboxylata. It seems that the magnetic fields kill a part of yeasts and the bigger part of them survives and continues in their growth.
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