title: Combined effects of bisphenol A and cadmium on growth and nitrate assimilation of soybean seedling roots.
abstract: Bisphenol A (BPA) and cadmium (Cd) pollution exist simultaneously in many regions. However, little information is available regarding the combined effects of BPA and Cd pollution on plants. Plant roots are in direct contact with the soil, which is an important compartment of BPA and Cd. In the present study, the effects of combined BPA and Cd pollution on soybean seedling roots were evaluated in pot experiments. Combined treatment with BPA and Cd at low concentrations (1.5 mg/kg BPA and 0.2 mg/kg Cd) improved soybean seedling root growth. However, other combined BPA and Cd treatments, including combined treatment with BPA (Cd) at the low concentration and Cd (BPA) at the high concentration as well as combined treatment with BPA and Cd at the high concentration, inhibited soybean seedling root growth. The improvement or inhibition of soybean seedling root growth was greater in the combined BPA and Cd treatments than in single treatments. The effects of the combined BPA and Cd treatments on root growth resulted from changes in nitrate assimilation. In addition, the combined effects of BPA and Cd on the nitrate and ammonium contents in roots are discussed. The present research provides a basic understanding of the combined effects of BPA and Cd pollution on plant roots.
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China; School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China.
authors.forename: Zhaoguo
authors.initials: Z
authors.lastname: Sun
authors.forename: Lihong
authors.initials: L
authors.lastname: Wang
authors.forename: Qingqing
authors.initials: Q
authors.lastname: Wang
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhou
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Huang
mesh_terms: D001559:Benzhydryl Compounds / Q000378:metabolism*; D002104:Cadmium / Q000378:metabolism*; D009566:Nitrates / Q000032:analysis / Q000378:metabolism*; D010636:Phenols / Q000378:metabolism*; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism; D012989:Soil Pollutants / Q000378:metabolism*; D013025:Glycine max / Q000187:drug effects* / Q000254:growth & development* / Q000378:metabolism; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D002104:Cadmium; D009566:Nitrates; D010636:Phenols; D012989:Soil Pollutants; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Bisphenol A; Cadmium; Combined effect; Nitrate assimilation; Soybean root