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首页> 外文期刊>Soil Science and Plant Nutrition >Nitrate N influences the accumulations and subcellular distributions of Cd and Zn to mediate the Cd/Zn interactions in dwarf Polish Wheat (Triticum polonicum L.) seedlings
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Nitrate N influences the accumulations and subcellular distributions of Cd and Zn to mediate the Cd/Zn interactions in dwarf Polish Wheat (Triticum polonicum L.) seedlings

机译：硝酸盐N会影响CD和Zn的累积和亚细胞分布，以介导矮化抛光小麦（Triticum Polonicum L.）幼苗的CD / Zn相互作用

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摘要

Nitrate (NO3-) assimilation and transport play important roles in Cd transport. Transcript profiling indicated that several NO3- metabolism-related genes were involved in Cd/Zn interactions in roots of dwarf Polish Wheat (DPW). In this study, the effects of NO3- on Cd and Zn accumulations and subcellular distributions in DPW under Cd, Zn, and Cd + Zn applications with lack or supply of NO3- were investigated. Compared with lack of NO3-, supply of NO3- enhanced the Cd accumulation and the NO3- uptake in roots under Cd application; it reduced the Zn accumulation and the NO3- uptake in roots under Zn application; it did not affect the Cd accumulation and the NO3- uptake, but reduced the Zn accumulation in roots under Cd + Zn application. Supply of NO3- increased the Cd concentration in soluble fraction (including vacuole) to enhance the Cd capacity in roots under Cd application; it reduced the Zn concentration in soluble fraction under Zn application, and in all fractions under Cd + Zn application. Under lack or supply of NO3-, application of Zn inhibited the Cd accumulation in roots with reducing the Cd concentration of soluble fraction, but promoted in shoots with increasing the Cd concentration of organelle fraction; application of Cd promoted the Zn accumulation in roots, but inhibited in shoots (except of supply of NO3-). These results indicated that NO3- influenced the subcellular distributions of Cd and Zn to affect their accumulations, although the affections were different.
机译：硝酸盐（NO3-）同化和运输在CD运输中起重要作用。转录物分析表明，在矮化抛光小麦（DPW）的根中，参与了几种NO 3-代谢相关基因的CD / Zn相互作用。在本研究中，研究了NO3-对CD，Zn和CD + Zn应用下CD和Zn累积和亚细胞分布的影响，CD，Zn和Cd + Zn应用具有缺乏或供应NO 3-。与缺乏NO 3相比，NO3的供应增强了CD应用下的CD累积和NO3 - 下降;它降低了Zn应用下的Zn积累和No3的No3;它不会影响CD累积和NO3吸收，但在CD + ZN应用下的根部中累积降低了Zn积累。 NO 3的供应增加可溶性级分（包括液泡）中的CD浓度，以增强CD施用下根的CD容量;它将Zn浓度降低在Zn应用下的可溶性级分，并且在CD + Zn应用下的所有级分中。在缺乏或供应NO 3-的情况下，Zn的应用抑制了根系中的CD积累，并降低了可溶性级分的Cd浓度，但在芽中促进，随着细胞石馏分的增加; CD在根中促进Zn积聚，但抑制在芽中（供应NO3-除外）。这些结果表明NO3影响CD和Zn的亚细胞分布，以影响其积累，尽管情感不同。

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  • 来源
    《Soil Science and Plant Nutrition》 |2019年第2期|共11页
  • 作者

    Wang Xiaolu; Cheng Yiran; Shuai Wendi; Zeng Jian; Kang Houyang; Fan Xing; Sha Lina; Zhang Haiqin; Wang Yi; Zhou Yonghong;

  • 作者单位

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Coll Resources Wenjiang Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Wenjiang 611130 Sichuan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤学;
  • 关键词

    Nitrate; cadmium; zinc; subcellular distribution; dwarf Polish Wheat;

    机译：硝酸盐;镉;锌;亚细胞分布;矮人波兰小麦;

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