ArticleInternational journal of molecular sciences2025
The Nitro-Oxidative Response Is Induced in the Leaves of Barley Plants Exposed to Barium.
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Barium (Ba) is classified as a non-essential element, meaning that it does not play a requisite role in the physiological processes of living organisms, but it poses a significant health risk to them. Plants that grow in Ba-rich soils, particularly near barite outcrops or mining waste, often accumulate high levels of Ba. Excess Ba in plant cells can lead to the overproduction of reactive oxygen species (ROS), which contributes to oxidative stress. Typically, nitric oxide (NO) can help alleviate heavy metal stress; however, under certain conditions, elevated levels of superoxide and nitric oxide may result in nitrosative and nitrative stress. This study investigated whether exposing barley plants to barium acetate (300 μM and 600 μM) triggers a nitro-oxidative response in spring barley plants. The molecular and biochemical analyses revealed fluctuations in the gene expression and activity of antioxidant enzymes and a steady rise in hydrogen peroxide (H
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