| Alleviation Effect of Lanthanum on Cadmium Stress in Seedling Hydroponic Culture of Kidney Bean and Corn |
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| 引用本文： | 黄晓华,周青. Alleviation Effect of Lanthanum on Cadmium Stress in Seedling Hydroponic Culture of Kidney Bean and Corn[J]. 中国稀土学报(英文版), 2006, 24(2): 248-252. DOI: 10.1016/S1002-0721(06)60103-8 |
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| 作者姓名： | 黄晓华 周青 |
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| 作者单位： | College of Chemistry and Environmental Science Nanjing Normal University Nanjing 210097 China，Key Laboratory of Industrial Biotechnology Ministry of Education Southern Yangtze University Wuxi 214036 China |
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| 基金项目： | 中国科学院资助项目，the Foundation of State Developing and Reforming Committee |
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| 摘 要： | Since1970s,rare earths(RE)have been exten-sively used as micro-fertilizers for crops in China.Ithas already been proved that REcani mprove the pro-duction and quality of crops.However,there havebeen a fewinvestigations about using RE as regulatorin pollution ecology.For example,An et al[1]studiedthe effects of O3on wheat growth and the protectiveeffect of RE.Yan and Zhou et al[2,3]discussed theprotective effect of RE on plants under acid rainstress.Jia et al[4]and Hu et al[5]reported th…
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| 关 键 词： | 菜豆 玉米 稀土 溶液培养 减缓效应 |
| 文章编号： | 1002-0721（2006）02-0248-05 |
| 收稿时间： | 2005-06-25 |
| 修稿时间： | 2005-07-25 |
Alleviation Effect of Lanthanum on Cadmium Stress in Seedling Hydroponic Culture of Kidney Bean and Corn |
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| Xiaohua ,Qing Zhou,. Alleviation Effect of Lanthanum on Cadmium Stress in Seedling Hydroponic Culture of Kidney Bean and Corn[J]. Journal of Rare Earths, 2006, 24(2): 248-252. DOI: 10.1016/S1002-0721(06)60103-8 |
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| Authors: | Xiaohua Qing Zhou |
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| Affiliation: | aCollege of Chemistry and Environmental Science, Nanjing Normal University, Narying 210097, China;bKey Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214036, China |
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| Abstract: | The seedling hydroponic culture experiment of kidney bean (Phaseolus vulgaris) and corn (Zea mays) was conducted to investigate the alleviation effect of lanthanum on Cd stress.It is found that growth is seriously inhibited and metabolism is maladjusted in the two crops under 30 and 300 μmol·L-1 Cd2 stress.Plant height, taproot length, leaf area, and fresh or dry weight of root, stem, and leaf are all obviously decreased.Further, chlorophyll content decreases, membrane permeability, malonydialdehyde (MDA) content, activities of catalase (CAT) and peroxidase (POD) increases under Cd stress, as compared with the control.The damage to these two crops becomes more conspicuous with the prolongation of Cd stress.It is suggested that lanthanum might help kidney bean and corn seedlings alleviate Cd stress by improving the photosynthetic capacity, reducing membrane permeability and MDA content, and maintaining the activities of CAT and POD of these two crops. |
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| Keywords: | La3 protective effect Cd2 stress kidney bean and corn seedling rare earths |
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