• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Biogeochemistry of Trace Elements: Environmental Protection, Remediation and Human Health international Symposium >Neutron radiography to reveal the interactions of trace elements with plant roots
【24h】

Neutron radiography to reveal the interactions of trace elements with plant roots

机译：中子射线照相术揭示微量元素与植物根的相互作用

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Hitherto, a lack of non-destructive techniques has hindered the study of the interactions of plant roots with trace elements. Neutron Radiography (NR) quantifies the water distribution in plant-soil systems by exploiting the high neutron cross section of hydrogen. Plant roots typically have a higher water content than the ambient soil and can thus be resolved. Similarly, NR elucidates the water content of, and therefore the water flux through, soil profiles. We tested various plant soil configurations and found that soil with a low organic matter content, and a low to moderate density & water retention capacity provides the best image quality, while providing a suitable medium for plant growth. NR provides the means to study responses of root growth and water uptake to trace elements in soil. For example, we observed root foraging and root avoidance of nickel and boron. NR also shows the effect of roots on the movement of water, which is the vehicle for trace element transport, through soil.
机译：迄今为止，缺乏非破坏性技术阻碍了植物根与微量元素相互作用的研究。中子射线照相术（NR）通过利用氢的高中子截面来量化植物-土壤系统中的水分布。植物根部的水分含量通常高于周围土壤，因此可以分解。类似地，NR阐明了土壤剖面的水分含量，因此也阐明了土壤剖面的水通量。我们测试了各种植物土壤结构，发现有机物含量低，密度低至中等且保水能力低的土壤提供了最佳的图像质量，同时为植物生长提供了合适的培养基。 NR提供了研究根系生长和水分吸收对土壤中微量元素的响应的手段。例如，我们观察了镍和硼的根部觅食和根部回避。 NR还显示了根对水运动的影响，水是微量元素通过土壤运输的媒介。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号