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Using Synchrotron-Based Approaches To Examine the Foliar Application of ZnSO4 and ZnO Nanoparticles for Field-Grown Winter Wheat

  • [设施]:北京正负电子对撞机
  • [期刊/会议名称]:Journal of Agricultural and Food Chemistry
  • [摘要]:The effects of foliar-applied ZnO nanoparticles (ZnO NPs) and ZnSO4 on the winter wheat (Triticum aestivum L.) grain yield and grain quality were studied under field conditions, with the distribution and speciation of Zn within the grain examined using synchrotron-based X-ray fluorescence microscopy and X-ray absorption spectroscopy. Although neither of the two Zn compounds improved the grain yield or quality, both increased the grain Zn concentration (average increments were 5 and 10 mg/kg for ZnSO4 and ZnO NP treatments, respectively). Across all treatments, this Zn was mainly located within the aleurone layer and crease of the grain, although the application of ZnO NPs also slightly increased Zn within the endosperm. This Zn within the grain was found to be present as Zn phosphate, regardless of the form in which Zn was applied. These results indicate that the foliar application of ZnO NPs appears to be a promising approach for Zn biofortification, as required to improve human health.
  • [发表日期]:2017
  • [第一作者]:Teng Zhang
  • [第一作者单位]:西北农林科技大学
  • [通讯作者]:Hui Mao
  • [通讯作者单位]:西北农林科技大学
  • [论文类型]:0
  • [期刊分类]:SCI1区
  • [学科分类]:农业科学
  • [影响因子]:3.154
  • [关键词]:ZnO nanoparticles, foliar, wheat, Zn biofortification, field experiment, X-ray absorption spectroscopy, X-ray fluorescence microscopy
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