Yue Li, Wantong Ning, Jiajiao Zhang, Sunan Xu, Lei Jiang, Zhonglin Chen, Lihong Zhang

                                                                                   School of Environment, Liaoning University

Abstract

It was observed in this work that application of Pb and B[a]P co-exposure signifcantly (p<0.05) reduced Pb content in ryegrass leaves and roots. The efect of Pb dominated the change of N, P, K, Cu, and Cr content in leaves and roots of ryegrass under joint stress of Pb and B[a]P. Principal component analysis showed that the foliar spraying of 400 μmol L−1 Pb and 80 μmol L−1 B[a]P had the best efect on improving the mineral element absorption under combined pollution. Ryegrass has strong resistance and certain Pb and B[a]P absorptive capacities, and can resist combined contamination by transferring N, P, K, Zn, Cu, and Cr contents between the overground and the root. These results highlight the potential capacity of ryegrass for use in the phytoremediation of soils contaminated by Pb and B[a]P.

Read the full article here:   61-Exposure on Element Accumulation in Ryegrass (Lolium perenne L.).pdf