title: Enhancing plant uptake of polychlorinated biphenyls and cadmium using tea saponin.
abstract: The potential of natural surfactant tea saponin to enhance uptake of polychlorinated biphenyls (PCBs) and cadmium (Cd) by Zea Mays L. and Saccharum officinarum L. was investigated. With addition of tea saponin at 0.01% in solution culture, the concentrations of PCB 14, PCB 18, PCB 77 and PCB 156 in root of corn seedling were 2.72, 2.68, 1.94 and 2.40 times as those of treatments without adding any surfactant, respectively. Application of tea saponin to the soil significantly elevated PCB 5 accumulation in shoots and roots (p<0.05) by sugarcanes. With addition of 0.3% tea saponin, Cd concentration was increased by 96.9% in roots, 156.8% in stems and 30.1% in leaves compared with the treatment without addition of surfactant in sugarcane grown in soil. Tea saponin had potential of assisting the uptake of PCBs and Cd by plants from water solution and soil.
authors.affiliation: College of Environmental Science and Engineering, Zhejiang Gongshang University, No. 149 Jiaogong Road, Hangzhou, China. huilongxia@yahoo.com.cn
authors.forename: Huilong
authors.initials: H
authors.lastname: Xia
authors.forename: Xiaoya
authors.initials: X
authors.lastname: Chi
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Yan
authors.forename: Wenwei
authors.initials: W
authors.lastname: Cheng
mesh_terms: D001673:Biodegradation, Environmental; D002104:Cadmium / Q000378:metabolism*; D018515:Plant Leaves / Q000378:metabolism; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000378:metabolism*; D031786:Saccharum / Q000378:metabolism*; D012503:Saponins / Q000737:chemistry / Q000378:metabolism*; D036226:Seedlings / Q000378:metabolism; D013662:Tea / Q000378:metabolism*; D003313:Zea mays / Q000378:metabolism*
chemical_list: D012503:Saponins; D013662:Tea; D002104:Cadmium; D011078:Polychlorinated Biphenyls