Alteration of Crop Yield and Quality of Wheat upon Exposure to Silver Nanoparticles in a Life Cycle Study

• DOI: 10.1021/acs.jafc.7b04904
• Publication Date: 2018-02-16T20:44:32Z
• Authors: Jie Yang; Fuping Jiang; Chuanxin Ma; Yukui Rui; Mengmeng Rui; Muhammad Adeel; Weidong Cao; Baoshan Xing
• Keywords: Phytotoxicity

As a result of the rapid development nanotechnology, metal-based nanoparticles (NPs) are inadvertently released into environment and may pose potential threat to ecosystem. However, information for food quality safety in NP-treated crops is limited. In present study, wheat ( Triticum aestivum L.) was grown different concentrations Ag-NP-amended soil (20, 200, 2000 mg kg-1) 4 months. At harvest, physiological parameters, Ag micronutrient (Fe, Cu, Zn) contents, amino acid total protein contents were measured. Results showed that, with increasing exposure doses, NPs exhibited severe phytotoxicity, including lower biomass, shorter plant height, grain weight. accumulation roots significantly higher than that shoots grains. Decreases content micronutrients Ag-NP-treated grains suggested low crop quality. The results indicated indeed altered nutrient edible portion. profile, presence decreased arginine histidine by 13.0 11.8%, respectively. summary, effects on portion should be taken account evaluation nanotoxicity terrestrial plants. Moreover, investigation impacts NP-caused alterations human health could further our understandings NP-induced phytotoxicity.