Possible role of iron containing proteins in physiological responses of soybean to static magnetic field.
Shokrollahi S, Ghanati F, Sajedi RH, Sharifi M · 2018
View Original AbstractSoybean plants exposed to a 20 mT static magnetic field showed decreases in ferritin and catalase gene expression and activity, while a 30 mT field produced opposite responses.
Plain English Summary
Researchers exposed soybean plants to static magnetic fields of 0, 20, and 30 mT for 5 days at 5 hours each day, examining ferrous content and the gene expression and activity of ferritin and catalase. At 20 mT, gene expression of the iron transporter, ferrous content, hydrogen peroxide content, and ferritin and catalase gene expression, content, and activity all decreased. Opposite responses were observed under 30 mT treatments. The researchers also evaluated purified ferritin and apoferritin from horse spleen and catalase from bovine liver under the static magnetic field, finding that tertiary structure, size, and activity were altered, while secondary structure was not influenced.
Why This Matters
The study examined both living soybean plants and purified proteins tested outside of living cells. The direction of the biological response in soybean depended on the strength of the static magnetic field, with 20 mT and 30 mT producing opposite effects. The results suggest that the static magnetic field triggered a signaling pathway mediated by iron. For the purified proteins, the secondary structure was not changed by the static magnetic field, but the tertiary structure, size, and activity were altered. The researchers suggested that the number of iron atoms in a protein may be involved in how the static magnetic field influences protein structure.
Exposure Details
- Magnetic Field
- 0, 20, and 30 mT
- Exposure Duration
- 5 day, 5 h each
Exposure Context
This study used 0, 20, and 30 mT for magnetic fields:
- 1,000Kx above the Building Biology guideline of 0.2 mG
- 200Kx above the BioInitiative Report recommendation of 1 mG
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
In the present study, we examined the relationship between ferrous content and gene expression and activity of ferritin and catalase in soybean plants under the influence of 0, 20, and 30 mT SMF for 5 day, 5 h each.
Exposure to 20 mT decreased gene expression of Fe transporter, ferrous and H2O2 contents and gene e...
From these results, it is likely that the number of iron atoms is involved in the nature of influence of SMF on protein structure.
Show BibTeX
@article{s_2018_possible_role_of_iron_462,
author = {Shokrollahi S and Ghanati F and Sajedi RH and Sharifi M},
title = {Possible role of iron containing proteins in physiological responses of soybean to static magnetic field.},
year = {2018},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0176161718301688},
}