title: Effects of bisphenol A on growth and nitrogen nutrition of roots of soybean seedlings.
abstract: Bisphenol A (BPA) is an environmental endocrine disruptor that seriously threatens ecological systems. Plants are the primary producers in ecological systems, but little information is available concerning the toxic effect of BPA on plants. In the present study, the effects of BPA on the growth and nitrogen nutrition of roots of soybean seedlings were investigated by using a root automatic scan apparatus and biochemical methods. It was found that when soybean seedlings were treated with 1.5 mg/L BPA, the growth of roots was improved, the content of nitrate in roots was increased, the content of ammonium in roots was decreased, and the activities of nitrate reductase and nitrite reductase in roots were not changed. The opposite effects were observed in roots treated with 17.2 mg/L and 50.0 mg/L BPA, except for an increase in the content of nitrate in roots treated with 17.2 mg/L BPA and a decrease in the activities of nitrate reductase and nitrite reductase in roots of soybeans seedlings. Statistical analysis indicated that the change in the nitrogen nutrition of roots of soybean seedlings treated with BPA was one reason why the growth of roots was changed. The authors suggest that the potential environmental and ecological risk of BPA to plants should receive more consideration.
authors.affiliation: State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Sun
authors.forename: Lihong
authors.initials: L
authors.lastname: Wang
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhou
mesh_terms: D001559:Benzhydryl Compounds / Q000633:toxicity*; D052244:Endocrine Disruptors / Q000633:toxicity*; D050901:Nitrate Reductase / Q000378:metabolism; D009566:Nitrates / Q000378:metabolism; D009572:Nitrite Reductases / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D058458:Nitrogen Cycle; D010636:Phenols / Q000633:toxicity*; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development / Q000502:physiology*; D000644:Quaternary Ammonium Compounds / Q000378:metabolism; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development / Q000502:physiology*; D012989:Soil Pollutants / Q000633:toxicity; D013025:Glycine max / Q000187:drug effects / Q000254:growth & development / Q000502:physiology*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D050901:Nitrate Reductase; D009566:Nitrates; D009572:Nitrite Reductases; D009584:Nitrogen; D010636:Phenols; D000644:Quaternary Ammonium Compounds; D012989:Soil Pollutants; C006780:bisphenol A; D000098826:Bisphenol A Compounds