Selenium Treatment Alleviated Oxidative Alteration Generated by Cadmium in Sunflower Roots
Biotechnology Journal International · pp. 174–181 · Published 31 Dec 2014
10.9734/BBJ/2015/14802Abstract
Selenium Treatment Alleviated Oxidative Alteration Generated by Cadmium in Sunflower Roots The present study investigated the role of selenium (Se) in regulating cadmium (Cd)-induced oxidative stress in sunflower (Helianthus annuus) roots. Short-term exposure of plants to 20 µM Cd intensively increased hydrogen peroxides (H2O2), protein carbonyl (PCO) content and lipid peroxidation as indicated by malondialdehyde (MDA) accumulation. In contrast, Se (5, 10 and 20 μM) pretreatment alleviated the oxidative damages as evidenced by the lowered H2O2, protein carbonyl (PCO) and MDA content. Concomitantly, Se treatment enhanced the activities of catalase (CAT, EC 1.11.1.6), ascorbate peroxidase (APX, EC 1.11.1.11) and glutathione peroxidase (GPX, EC 1.11.1.9), but lowered that of superoxide dismutase (SOD, EC 1.15.1.1) in the root exposed Cd. Taken together, our results strongly suggest that exogenous Se may improve the tolerance of the plant to the Cd-induced oxidative stress.
Cited by 3
Mimosa Ghorai, Vijay Kumar, Vinay Kumar · Journal of Soil Science and Plant Nutrition · 2022
Muhammad Rizwan, Shafaqat Ali, Muhammad Zia ur Rehman · Critical Reviews in Environmental Science and Technology · 2020
Nikita S. Gawade, Madhuri C. Pagariya, Pritam R. Jadhav · Plant Science · 2026
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