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Abstract Title:

Oxidative stress in broad bean (Vicia faba L.) induced by static magnetic field under natural radioactivity.

Abstract Source:

Mutat Res. 2012 Jan 24 ;741(1-2):116-21. Epub 2011 Nov 16. PMID: 22108253

Abstract Author(s):

Fatemeh Javani Jouni, Parviz Abdolmaleki, Faezeh Ghanati

Article Affiliation:

Fatemeh Javani Jouni

Abstract:

The investigation was performed to evaluate the influence of the static magnetic field on oxidative stress in Vicia faba cultivated in soil from high background natural radioactivity in Iran. Soil samples were collected from Ramsar, Iran where the annual radiation absorbed dose from background radiation is substantially higher than 20 mSv/year. The soil samples were then divided into 2 separate groups including high and low natural radioactivity. The plants were continuously exposed to static magnetic field of 15 mT for 8 days, each 8h/day. The results showed that in the plants cultivated in soils with high background natural radioactivity and low background natural radioactivity the activity of antioxidant enzymes as well as flavonoid content were lower than those of the control. Treatment of plants with static magnetic field showed similar results in terms of lowering of antioxidant defense system and increase of peroxidation of membrane lipids. Accumulation of ROS also resulted in chromosomal aberration and DNA damage. This phenomenon was more pronounced when a combination of natural radiation and treatment with static magnetic field was applied. The results suggest that exposure to static magnetic field causes accumulation of reactive oxygen species in V. faba and natural radioactivity of soil exaggerates oxidative stress.

Study Type : Plant Study

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