Pant Deepak, Sharma Virbala, Singh Pooja
School of Earth and Environmental Sciences, Waste Management Laboratory, Central University of Himachal Pradesh, Dharamshala, Himachal Pradesh 176215, India.
Toxicol Rep. 2015 May 12;2:716-720. doi: 10.1016/j.toxrep.2015.04.006. eCollection 2015.
Current research highlights the use of aquatic macrophyte (Himalayan horsetail) for lead detoxification. This plant species can grow in waste cathode ray tube (CRT) powder and absorbs its Pb. X-ray fluorescence spectroscopy (XRF) analysis of plant ash shows that 68 mg/kg lead concentration in the untreated plant was improved to 7600 mg/kg in CRT powder after 90 days. The role of monosilicic and/or monoplumbic acid as reaction intermediates for Pb detoxification and associated bioaccumulation is proposed. Pb detoxification in is mainly rendering around the iso-electronic nature of Pb and Si and forms similar phytochelatin (PC) complexes with available family of peptide ligands. The study focuses on the underlying functions of silicon containing plants in metal detoxification.
当前的研究强调了利用水生大型植物（喜马拉雅木贼）进行铅解毒。这种植物物种能够在废弃阴极射线管（CRT）粉末中生长并吸收其中的铅。对植物灰分的X射线荧光光谱（XRF）分析表明，未经处理的植物中铅浓度为68毫克/千克，在CRT粉末中生长90天后，铅浓度提高到了7600毫克/千克。有人提出单硅酸和/或单铅酸作为铅解毒及相关生物积累的反应中间体所起的作用。铅解毒主要是基于铅和硅的等电子性质，并与可用的肽配体家族形成类似的植物螯合肽（PC）复合物。该研究聚焦于含硅植物在金属解毒中的潜在功能。
