Manganese and copper additions differently reduced cadmium uptake and accumulation in dwarf Polish wheat (Triticum polonicum L.)

文献类型： 外文期刊

第一作者： Chen, Xing

作者： Chen, Xing;Yang, Shan;Ma, Jian;Huang, Yiwen;Wang, Yi;Li, Siyu;Long, Dan;Xiao, Xue;Wu, Dandan;Fan, Xing;Kang, Houyang;Zhou, Yonghong;Cheng, Yiran;Zeng, Jian;Li, Jun;Sha, Lina;Zhang, Haiqin

作者机构：

关键词： Cadmium; Wheat; Manganese; Copper; Uptake and accumulation

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）

ISSN： 0304-3894

年卷期： 2023 年 448 卷

页码：

收录情况： SCI

摘要： This study investigated the effects of manganese (Mn) and copper (Cu) on dwarf Polish wheat under cadmium (Cd) stress by evaluating plant growth, Cd uptake, translocation, accumulation, subcellular distribution, and chemical forms, and the expression of genes participating in cell wall synthesis, metal chelation, and metal transport. Compared with the control, Mn deficiency and Cu deficiency increased Cd uptake and accumulation in roots, and Cd levels in root cell wall and soluble fractions, but inhibited Cd translocation to shoots. Mn addition reduced Cd uptake and accumulation in roots, and Cd level in root soluble fraction. Cu addition did not affect Cd uptake and accumulation in roots, while it caused a decrease and an increase of Cd levels in root cell wall and soluble fractions, respectively. The main Cd chemical forms (water-soluble Cd, pectates and protein integrated Cd, and undissolved Cd phosphate) in roots were differently changed. Furthermore, all treatments distinctly regulated several core genes that control the main component of root cell walls. Several Cd absorber (COPT , HIPP , NRAMP , and IRT) and exporter genes (ABCB , ABCG , ZIP , CAX, OPT , and YSL) were differently regulated to mediate Cd uptake, translocation, and accumulation. Overall, Mn and Cu differently influenced Cd uptake and accumulation; Mn addition is an effective treatment for reducing Cd accumulation in wheat.

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