Effect of magnetic fields on the growth of bacterium Staphylococcus aureus

Efecto de campos magnéticos en el crecimiento de la bacteria Staphylococus aureus

• Nomar Zambrano Universidad Rafael Belloso Chacín
• Gabriela Pérez M. Universidad José Gregorio Hernández
• Rodolfo Salas Auvert Universidad del Zulia
• José R. Fermín Universidad del Zulia

DOI: https://doi.org/10.5281/zenodo.5590918

Keywords: Asynchronous growth, exponential growth, magnetic field effect on microorganisms, S. aureus

Abstract

The effects of weak static and low-frequency magnetic fields on the growth rate of S. aureus were investigated. The measurements were performed with static magnetic fields with magnitude in range 0.0 G ≤ Ho ≤ 14.0 G and low-frequency magnetic fields at fixed amplitude Ho 4.5 G, and frequency range 0.0 ≤ f ≤ 1.0 kHz. The growth of these bacteria is negatively affected by increasing the intensity of the static magnetic field. When exposed to an oscillating field, a positive effect was observed on the rate of growth of the colonies with respect to the field frequency. In both, static or ac magnetic field, the growth curves follow an exponential law, typical of asynchronous cell divisions.

References

PORTIER C.J., WOLFE M.S. (Eds.), NIEHS working group report, NIH Publication No. 98- 3981. 1998.

LOWY F. D., N. Engl J Med 339: 520-532. 1998.

BLANC D. S., FRANCIOLI P, Le C. A., GAZAGNE L, LECAILLON E, GUEUDET P, VANDENESCH F, ETIENNE J, J Clin Microbiol 39: 2287-2290. 2001.

CHAMBERS H.F. Clin Microbiol Rev 10: 781-791. 1997.

WEINTRAUB M. Archives of Physical Medicine and Rehabilitation 79: 469-470. 1998.

SHARRARD W. J. J Bone Joint Surg Br 72: 347-355. 1990.

DJORDJEVIC D., PUCAR D., LEKIC D., Pathophysiology 5(1001):129. 1998.

CAMERON I.L., SHORT N.J., MARKOV M.S. The Environmentalist 27: 453-456. 2007.

SINGH R. P., FAO Report. 2001.

LIPIEC J., JANAS P., BARABASZ W., PYSZ M., PISULEWSKI, P. Acta Agrophysica 5: 357-365. 2005.

NAKASONO S., SAIKI, H. Radiation Research 154: 208-216. 2000.

FOJT L., STRAŠÁK L., VETTERL V., ŠMARDA J. Bioelectrochemistry 63: 337-341. 2004

MAKAREVICH A.V. Biophysics 44: 65-69. 1999

STRAŠÁK L., VETTERL V., ŠMARDA J. Bioelectrochemistry 55: 161-164. 2002.

CARIO P., GREENEBAUM B., GOODMAN E.M. J. Cell. Biochem. 68: 1-7. 1998.

IKEHATA M., KOANA T., SUZUKI Y., SHIMIZU, H., NAKAGAWA M. Mutation Research 427: 147-156. 1999.

WEBB G. F. Trans Am Math Soc 303: 751- 763. 1987.

TESSARO L., MURUGAN N., PERSINGER, M. Microbiological Research 172: 26-33. 2015.

MASOOD S. Biophysical Reviews and Letters 12(4): 177-186. 2017.