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首页> 外文期刊>Environmental Science & Technology >Copper Oxide Nanomaterial Fate in Plant Tissue: Nanoscale Impacts on Reproductive Tissues
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Copper Oxide Nanomaterial Fate in Plant Tissue: Nanoscale Impacts on Reproductive Tissues

机译:植物组织中氧化铜纳米材料命运:纳米级对生殖组织的影响

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摘要

A thorough understanding of the implications of chronic low-dose exposure to engineered nanomaterials through the food chain is lacking. The present study aimed to characterize such a response in Cucurbita pepo L. (zucchini) upon exposure to a potential nanoscale fertilizer: copper oxide (CuO) nanoparticles. Zucchini was grown in soil amended with nano-CuO, bulk CuO ( 100 mg Kg~(-1)), and CuSO_4 (320 mg Kg~(-1)) from germination to flowering (60 days). Nano-CuO treatment had no impact on plant morphology or growth nor pollen formation and viability. The uptake of Cu was comparable in the plant tissues under all treatments. RNA-seq analyses on vegetative and reproductive tissues highlighted common and nanoscale-specific components of the response. Mitochondrial and chloroplast functions were uniquely modulated in response to nanomaterial exposure as compared with conventional bulk and salt forms. X-ray absorption spectroscopy showed that the Cu local structure changed upon nano-CuO internalization, suggesting potential nanoparticle biotransformation within the plant tissues. These findings demonstrate the potential positive physiological, cellular, and molecular response related to nano-CuO application as a plant fertilizer, highlighting the differential mechanisms involved in the exposure to Cu in nanoscale, bulk, or salt forms. Nano-CuO uniquely stimulates plant response in a way that can minimize agrochemical inputs to the environment and therefore could be an important strategy in nanoenabled agriculture.
机译:缺乏对慢性低剂量暴露于通过食物链的慢性低剂量暴露于工程纳米材料的影响的彻底理解。本研究旨在在暴露于潜在的纳米级肥料:氧化铜(CuO)纳米粒子上,表征葫芦塔辣椒L.(西葫芦)的这种反应。西葫芦在用纳米cuo,散装cuo(100mg kg〜(-1))和cuso_4(320mg kg〜(-1))萌发到开花(60天)的土壤中生长。 Nano-CuO治疗对植物形态或生长没有影响,也没有花粉形成和活力。在所有治疗的植物组织中,Cu的摄取在植物组织中。 RNA-SEQ对营养和生殖组织的分析突出了常见和纳米级的响应组成部分。与常规散装和盐形式相比,响应于纳米材料曝光的线粒体和叶绿体功能唯一地调节。 X射线吸收光谱显示Cu局部结构在纳米CuO内化时改变,暗示植物组织内的潜在纳米粒子生物转化。这些发现证明了与纳米CuO应用作为植物肥料相关的潜在的积极生理,细胞和分子反应,突出了纳米级,散装或盐形式暴露于Cu的差异机制。 Nano-Cuo独特地刺激植物反应,以便可以最大限度地减少对环境的农业化学投入,因此可能成为纳米弹性农业的重要策略。

著录项

  • 来源
    《Environmental Science & Technology》 |2021年第15期|10769-10783|共15页
  • 作者单位

    Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma 43124 Italy;

    Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma 43124 Italy;

    Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma 43124 Italy;

    The Connecticut Agricultural Experiment Station New Haven Connecticut 06504 United States;

    Earth Science Department Univeristy of Florence Firenze 50121 Italy;

    Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma 43124 Italy;

    Elettra Sincrotrone Trieste Trieste 34149 Italy;

    Elettra Sincrotrone Trieste Trieste 34149 Italy;

    Elettra Sincrotrone Trieste Trieste 34149 Italy;

    CNR-IOM-OGG c/o ESRF-The European Synchrotron Grenoble Cedex 9 F-38043 France;

    Elettra Sincrotrone Trieste Trieste 34149 Italy;

    Elettra Sincrotrone Trieste Trieste 34149 Italy;

    CNR-IOM-OGG c/o ESRF-The European Synchrotron Grenoble Cedex 9 F-38043 France;

    The Connecticut Agricultural Experiment Station New Haven Connecticut 06504 United States;

    Department of Chemistry Life Sciences and Environmental Sustainability University of Parma Parma 43124 Italy Consorzio Interuniversitario Nazionale per le Scienze Ambientali (CINSA) University of Parma Parma 43124 Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    nanomaterials; nanofertilization; RNA-seq; pollen; biotransformation; Cucurbita pepo;

    机译:纳米材料;纳米心化;RNA-SEQ;花粉;生物转化;葫芦塔辣椒;

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