Uptake of 2,4-bis(Isopropylamino)-6-methylthio-s-triazine by vetiver grass (Chrysopogon zizanioides L.) from hydroponic media

S. X. Sun, Southwest Forestry University
Y. M. Li, Yunnan Agricultural University
Y. Zheng, Southwest Forestry University
Y. Hua, Southwest Forestry University
R. Datta, Michigan Technological University
Y. M. Dan, Yunnan Import and Export Inspection and Quarantine Bureau
P. Lv, Yunnan Import and Export Inspection and Quarantine Bureau
D. Sarkar, Montclair State University

© Springer Science+Business Media New York 2016. Publisher’s version of record: https://doi.org/10.1007/s00128-016-1737-3

Abstract

2,4-bis(Isopropylamino)-6-methylthio-s-triazine (prometryn) poses a risk to aquatic environments in several countries, including China, where its use is widespread, particularly due to its chemical stability and biological toxicity. Vetiver grass (Chrysopogon zizanioides L.) was tested for its potential for phytoremediation of prometryn. Vetiver grass was grown in hydroponic media in a greenhouse, in the presence of prometryn, with appropriate controls. Plant uptake and removal of prometryn from the media were monitored for a period of 67 days. The results showed that the removal of the prometryn in the media was expedited by vetiver grass. The removal half-life (t_1/2) was shortened by 11.5 days. Prometryn removal followed first-order kinetics (C_t = 1.8070e^−0.0601t). This study demonstrated the potential of vetiver grass for the phytoremediation for prometryn.