Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX, 79968, USA; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX, 79968, USA.
Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX, 79968, USA; The Center for Nanotechnology and Agricultural Pathogen Suppression (CeNAPS), New Haven, CT, 06511, United States.
Plant Physiol Biochem. 2018 Nov;132:120-127. doi: 10.1016/j.plaphy.2018.08.037. Epub 2018 Aug 29.
The growth of the nanotechnology industry has raised concerns about its environmental impacts. In particular, the effect on terrestrial plants, which are the primary producers of the global food chain, is widely debated. In this study, cilantro plants (Coriandrum sativum) were cultivated for 35 days in soil amended with ZnO nanoparticles (N ZnO), bulk ZnO (B ZnO) and ZnCl (ionic/I Zn) at 0-400 mg/kg. Photosynthetic pigments, lipid peroxidation, NMR-based metabolic, and ICP-based metallomic profiles were evaluated. All Zn compounds increased the chlorophyll content by at least 50%, compared to control. Only N ZnO at 400 mg/kg decreased lipid peroxidation by 70%. NMR data showed that all compounds significantly changed the carbinolic-based compounds, compared with control. Highest root and shoot uptake of Zn was observed at B 400 and I 100, respectively. Results of this study corroborates that N ZnO at a concentration <400 mg/kg improved photosynthesis pigments and the defense response in cilantro plants cultivated in organic soil.
纳米技术产业的发展引起了人们对其环境影响的关注。特别是对陆地植物的影响，因为它们是全球食物链的主要生产者，这一点引起了广泛的争论。在这项研究中，芫荽（Coriandrum sativum）在添加了 ZnO 纳米粒子（N ZnO）、块状 ZnO（B ZnO）和 ZnCl（离子/I Zn）的土壤中培养了 35 天，浓度范围为 0-400mg/kg。评估了光合色素、脂质过氧化、基于 NMR 的代谢物和基于 ICP 的金属组学特征。与对照组相比，所有 Zn 化合物至少使叶绿素含量增加了 50%。只有 400mg/kg 的 N ZnO 使脂质过氧化降低了 70%。NMR 数据显示，与对照组相比，所有化合物都显著改变了基于 carbinolic 的化合物。在 B 400 和 I 100 下，观察到根和地上部分的 Zn 吸收量最高。本研究结果证实，在有机土壤中种植的芫荽中，浓度<400mg/kg 的 N ZnO 可提高光合作用色素和防御反应。
