| Effects of Rare Earth Elements on Vigor Enhancement of Aged Spinach Seeds |
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| 作者姓名： | 刘超 洪法水 郑蕾 汤萍 王志刚 |
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| 作者单位： | Life Sciences College，Suzhou University，Suzhou 215006，China，Life Sciences College，Suzhou University，Suzhou 215006，China，Life Sciences College，Suzhou University，Suzhou 215006，China，Life Sciences College，Suzhou University，Suzhou 215006，China，Life Sciences College，Suzhou University，Suzhou 215006，China |
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| 基金项目： | 国家自然科学基金，苏州大学校科研和教改项目 |
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| 摘 要： | Inthe 1 970s ,asakindofmicroelementfertilizerinagriculture ,rareearthelements (REEs)wereusedtoachieveanotablecropyieldinChina1～ 3] .Alargenumberofexperimentsindicatedthatthegerminationrateandvigorofseedswereincreasedbythetreatmentwithrareearthelements ,andthegrowthofseedlingswasalsopromoted .Hongetal.provedthatsoakingseedswithLa3+ ,andCe3+ couldacceleratetheger minationofriceseeds ,greatlypromoteseedvigor ,in creasetherespirationofgerminatedseeds ,obviouslyactivatesomehydrolyticenzymessuch…
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| 关 键 词： | 稀土元素 菠菜 种子 植物学 抗氧化性 发芽率 细胞膜 |
Effects of Rare Earth Elements on Vigor Enhancement of Aged Spinach Seeds |
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| Liu Chao,Hong Fashui.Effects of Rare Earth Elements on Vigor Enhancement of Aged Spinach Seeds[J].Journal of Rare Earths,2004,22(4):547-551. |
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| Authors: | Liu Chao Hong Fashui |
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| Affiliation: | Liu Chao,Hong Fashui ~ |
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| Abstract: | The effect and the mechanism of action of lanthanum, cerium and neodymium on aged seeds of spinach were studied. By LaCl3, CeCl3, and NdCl3 treatment, the germination rate, germination index and vigor index of aged spinach seeds are increased and the activities of superoxide dismutase, catalase and peroxidase are enhanced. Moreover the ·O2- and malondialdehyde content are decreased and the cell membrane permeability of aged spinach seeds is reduced. Among these three rare earth elements, Ce treatment enhances vigor of aged seeds most significantly, that of Nd treatment secondly and La treatment is not as effective as the other two treatments. The reason may be from 4f electron characteristic and alternation valence of REEs. |
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| Keywords: | botany spinach aged seed germination antioxidase rare earths |
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