Effect of Imidacloprid Uptake from Contaminated Soils on Vegetable Growth

• DOI: 10.1021/acs.jafc.9b00747
• Publication Date: 2019-06-11T17:27:22Z
• Authors: Yong Li; Ling Long; Jing Ge; Haocong Li; Meng Zhang; Qun Wan; Xiangyang Yu
• Keywords: 0301 basic medicine; Insecticides; Biological Transport; Nitro Compounds; Plant Roots; Mass Spectrometry; Plant Leaves; Neonicotinoids; Oxidative Stress; Soil; 03 medical and health sciences; Vegetables; Soil Pollutants; Amino Acids; Plant Shoots

In the present study, effect of imidacloprid uptake from contaminated soils on growth leaf vegetable Shanghaiqing was investigated. The result showed that during 35-day exposure, concentration (IMI) in order shoots > roots soil, indicating IMI more readily concentrated than roots. Moreover, biomass IMI-treated comparable to controls with early but higher after 7-day showing test could stimulate growth. plant metabolic analysis using LC-QTOF/MS revealed may cause oxidative stress exposure; however, stressful situation seems be relieved increase some substances (such as spermidine and phenylalanine) late exposure. upregulation N-rich amino acids (glutamine, aspartate, arginine) suggested process fixing inorganic nitrogen should enhanced, possibly contributing enhanced rates. Additionally, four IMI's metabolites were identified by MS-FINDER software, distribution three tissues compared.