Effects and mechanisms of the combined pollution of lanthanum and acid rain on the root phenotype of soybean seedlings |
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| Authors: | Zhaoguo Sun Lihong Wang Qing Zhou Xiaohua Huang |
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| Affiliation: | 1. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China;2. School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China;3. Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China |
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| Abstract: | Rare earth pollution and acid rain pollution are both important environmental issues worldwide. In regions which simultaneously occur, the combined pollution of rare earth and acid rain becomes a new environmental issue, and the relevant research is rarely reported. Accordingly, we investigated the combined effects and mechanisms of lanthanum ion (La3+) and acid rain on the root phenotype of soybean seedlings. The combined pollution of low-concentration La3+ and acid rain exerted deleterious effects on the phenotype and growth of roots, which were aggravated by the combined pollution of high-concentration La3+ and acid rain. The deleterious effects of the combined pollution were stronger than those of single La3+ or acid rain pollution. These stronger deleterious effects on the root phenotype and growth of roots were due to the increased disturbance of absorption and utilization of mineral nutrients in roots. |
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| Keywords: | Lanthanum Acid rain Root phenotype Mineral elements Combined effect |
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