The nutrient preferences of rice and wheat influence fluoranthene uptake

Applications of the key plant nutrient nitrogen (N) increase uptake and accumulation pollutants such as polycyclic aromatic hydrocarbons (PAHs). However, it is unclear how a plant’s preference for particular form N in soil affects PAHs. In this study, we investigated physiological mechanisms involved fluoranthene by rice ( Oryza sativa L.) wheat Triticum aestivum examined these were affected different forms treatment under an equivalent supply. Both species uptake. Rice accumulated more than supply, while transfer coefficient was higher that rice. Fluoranthene positively correlated with root morphology parameters, transpiration. Of treatments examined, ammonium (NH 4 + -N)-treated nitrate (NO 3 − most at growth, total content, protein antioxidant enzyme activities. Based on partial least squares path model (PLS-PM) analysis, main factor influencing treated N. Overall, ammonium-preferring nitrate-preferring had highest content their preferred forms, which also promoted Therefore, regulating applied to could be suitable strategy improve safety agricultural products.