Exogenous proline mitigates toxic effects of cadmium via the decrease of cadmium accumulation and reestablishment of redox homeostasis in Brassica juncea

文献类型： 外文期刊

第一作者： Wang, Yuanduo

作者： Wang, Yuanduo;Tan, Piaopiao;Chang, Liang;Yue, Zheming;Zeng, Chaozhen;Liu, Zhixiang;Dong, Xujie;Wang, Yuanduo;Tan, Piaopiao;Chang, Liang;Yue, Zheming;Zeng, Chaozhen;Liu, Zhixiang;Dong, Xujie;Dong, Xujie;Li, Mei;Yan, Mingli;Yan, Mingli

作者机构：

关键词： Brassica juncea; Cadmium tolerance; Reactive oxygen species; Oxidative stress; Antioxidant enzymes

期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）

ISSN： 1471-2229

年卷期： 2022 年 22 卷 1 期

页码：

收录情况： SCI

摘要： Background As a vital osmoticum, proline has an important role in enhancing the tolerance of plants to environmental stress. It is unclear whether the application of exogenous proline can improve the tolerance of Brassica juncea to cadmium (Cd). Results This study investigated the effects of different concentrations of proline (20, 40, 60, 80, and 100 mg/L) under Cd stress at different times (0 d, 2 d, and 7 d) on the growth and physiology of B. juncea. Treatment with exogenous proline not only increased the content of proline in B. juncea but also alleviated Cd-induced seedling growth inhibition via the maintenance of higher photosynthetic pigment content and cell viability and a decrease in the content of Cd. Moreover, it increased the activities of antioxidant enzymes and the glutathione/glutathione disulfide ratio to reduce the accumulation of reactive oxygen species. Compared with other concentrations, 60 mg/L of exogenous proline was the most effective at mitigating Cd toxicity in B. juncea. Conclusions Exogenous proline treatment enhanced the tolerance to Cd via a decrease in Cd accumulation and reestablishment of the redox homeostasis in B. juncea.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序