Static and 50 Hz magnetic fields of 0.35 and 2.45 mT have no effect on the growth of Saccharomyces cerevisiae

Ruiz-Gómez, Miguel J; Prieto-Barcia, M. I.; Ristori-Bogajo, E.; Martı́nez-Morillo, M.

doi:10.1016/j.bioelechem.2004.04.003

Cited by 54 publications

(33 citation statements)

References 12 publications

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“…Ruiy-Gomés [22] reported the growth effects induced by static and sinusoidal 50 Hz magnetic fields (MF) on the haploid yeast strain S. cerevisiae WS8105-1C. The experiments were performed at 0.35 and 2.45 mT, and the yeasts were exposed to MF for 24 and 72 h in the homogeneous field area.…”

Section: Discussionmentioning

confidence: 99%

“…According to A. Markov et al's paper [16] it is important to study exposed organism not only on the cellular or tissue level but also the complex effects on the whole organism. From that reason bacteria [17][18][19], or yeast [20][21][22][23] -unicellular organisms -can be good subjects for the study of magnetic fields effects. In our previous works we studied the MF effects on bacteria.…”

Section: Introductionmentioning

confidence: 99%

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

Novák

Strašák

Fojt

et al. 2007

Bioelectrochemistry

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Novák

Strašák

Fojt

et al. 2007

Bioelectrochemistry

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“…With respect to the last case, proliferation at 110 mT, 220 mT (8), and at 0.5 mT, 50 Hz (9, 10) and inhibition at 0.2 mT, 50 Hz under alternating magnetic field (9) have been studied. However, these results have been contradictory because Ruiz-Gómez et al (11) did not observe alterations in the yeast growth under static and sinusoidal 50 Hz magnetic field (0.35 and 2.45 mT).…”

Section: Introductionmentioning

confidence: 91%

Bioreactor Coupled with Electromagnetic Field Generator: Effects of Extremely Low Frequency Electromagnetic Fields on Ethanol Production by Saccharomyces cerevisiae

et al. 2007

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The effect of extremely low frequency (ELF) magnetic fields on ethanol production by Saccharomyces cerevisiae using sugar cane molasses was studied during batch fermentation. The cellular suspension from the fermentor was externally recycled through a stainless steel tube inserted in two magnetic field generators, and consequently, the ethanol production was intensified. Two magnetic field generators were coupled to the bioreactor, which were operated conveniently in simple or combined ways. Therefore, the recycle velocity and intensity of the magnetic field varied in a range of 0.6-1.4 m s(-1) and 5-20 mT, respectively. However, under the best conditions with the magnetic field treatment (0.9-1.2 m s(-1) and 20 mT plus solenoid), the overall volumetric ethanol productivity was approximately 17% higher than in the control experiment. These results made it possible to verify the effectiveness of the dynamic magnetic treatment since the fermentations with magnetic treatment reached their final stage in less time, i.e., approximately 2 h earlier, when compared with the control experiment.

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“…Although several studies have exposed yeast cells to varying strengths and durations of both static and alternative MFs, conflicting results as to their effects are often obtained. For example, it was shown that S. cerevisiae yeast cells exposed to both static and 50 Hz homogeneous MFs at 0.35 and 2.45 mT with exposure times of 24 and 72 h displayed normal growth [Ruiz-Gómez et al, 2004]. In contrast, Novák et al [2007] reported that a 50 Hz MF with an induction of 10 mT decreased the number of viable yeast cells and reduced their growth rate.…”

Section: Introductionmentioning

confidence: 97%

Effect of static magnetic fields on the budding of yeast cells

Egami

Naruse

Watarai

2010

Bioelectromagnetics

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The effect of static magnetic fields on the budding of single yeast cells was investigated using a magnetic circuit that was capable of generating a strong magnetic field (2.93 T) and gradient (6100 T² m⁻¹). Saccharomyces cerevisiae yeast cells were grown in an aqueous YPD agar in a silica capillary under either a homogeneous or inhomogeneous static magnetic field. Although the size of budding yeast cells was only slightly affected by the magnetic fields after 4 h, the budding angle was clearly affected by the direction of the homogeneous and inhomogeneous magnetic fields. In the homogeneous magnetic field, the budding direction of daughter yeast cells was mainly oriented in the direction of magnetic field B. However, when subjected to the inhomogeneous magnetic field, the daughter yeast cells tended to bud along the axis of capillary flow in regions where the magnetic gradient, estimated by B(dB/dx), were high. Based on the present experimental results, the possible mechanism for the magnetic effect on the budding direction of daughter yeast cells is theoretically discussed.

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Static and 50 Hz magnetic fields of 0.35 and 2.45 mT have no effect on the growth of Saccharomyces cerevisiae

Cited by 54 publications

References 12 publications

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

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

Bioreactor Coupled with Electromagnetic Field Generator: Effects of Extremely Low Frequency Electromagnetic Fields on Ethanol Production by Saccharomyces cerevisiae

Effect of static magnetic fields on the budding of yeast cells

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