Glutathione alleviates boron toxicity by modulating nitrogen metabolism and boron uptake in rice seedlings

文献类型： 外文期刊

第一作者： Zhang, Lei

作者： Zhang, Lei;Suo, Lizhu;Suo, Lizhu;Shan, Yan;Wang, Bo

作者机构：

关键词： Metal stress; cereal crop; ecosystem services; biochemical attributes

期刊名称：TURKISH JOURNAL OF AGRICULTURE AND FORESTRY （ 影响因子：3.0； 五年影响因子：2.2 ）

ISSN： 1300-011X

年卷期： 2024 年 48 卷 6 期

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收录情况： SCI

摘要： Boron (B) toxicity is an abiotic stressor in plants due to the narrow threshold range between B deficiency and B toxicity. Glutathione (GSH) has been reported to reduce abiotic stress in plants, but its effect on B toxicity alleviation, particularly in rice seedlings, is not clear. Therefore, the present research yields information on the antioxidant mechanism, nitrogen metabolism, cell wall components, and B concentrations that allow rice seedlings to withstand the adverse effects of B toxicity by GSH application. The results suggest that B toxicity suppressed the growth traits of rice. However, GSH treatment exhibited a positive influence on the growth of rice seedlings. GSH application reduced B uptake and translocation in shoots (28.44%) while accumulating higher B concentrations in roots (39.69%). The cell wall components were increased by GSH treatment, creating more negatively charged ions on the cell wall for B adsorption. GSH application resulted in reduced accumulation of ammonium and increased total nitrogen contents in leaves. Moreover, N metabolism enzymes were increased by GSH application. The overall outcomes show the function of glutathione in reducing the adverse effects of B toxicity on rice plants. This study provides insight into the function of glutathione in rice, which could be an efficient way to boost plant resistance to abiotic stress factors like B toxicity.

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