| 铅胁迫对桐花树幼苗根叶蛋白质及根抗氧化酶活性的影响 |
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| 引用本文： | 蔡建秀,王慧云,王春风.铅胁迫对桐花树幼苗根叶蛋白质及根抗氧化酶活性的影响[J].安徽农业科学,2010,38(6):2903-2905,2926. |
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| 作者姓名： | 蔡建秀 王慧云 王春风 |
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| 作者单位： | 泉州师范学院化学与生命科学学院,福建泉州,362000;泉州师范学院化学与生命科学学院,福建泉州,362000;泉州师范学院化学与生命科学学院,福建泉州,362000 |
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| 基金项目： | 泉州师院大学生创新实验项目(2008CXSY17);;泉州师院生物化学与分子生物学重点学科(XK0609) |
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| 摘 要： | 目的]研究桐花树抗重金属铅（Pb2＋）污染的特性。方法]采用水培的方法,研究不同浓度（0.1、0.5、1.0、2.0、3.0 mmol/L）外源重金属铅（Pb2＋）胁迫对桐花树幼苗根和叶蛋白质及根抗氧化酶活性的影响。结果]桐花树幼苗在受胁迫过程中受到时间和铅浓度的双重影响。根和叶的蛋白质含量随着铅浓度的升高总体呈先增加后减少的趋势,随着胁迫时间的延长,根和叶的蛋白质含量总体也趋于减少,除胁迫15 d,根在1.0 mmol/L左右、叶在1.0～3.0 mmol/L高于胁迫3d的。随着铅浓度的升高,POD和SOD活性总体表现先升高后降低的趋势;随着胁迫时间的延长,低浓度组和对照组POD和SOD活性呈逐渐升高的趋势,高浓度组呈先升高后降低的趋势。结论]桐花树对重金属铅污染有一定的抗性,但当浓度大于2.0 mmol/L时,桐花树生长受到抑制。
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| 关 键 词： | 桐花树 铅 蛋白质 过氧化物酶 超氧化物歧化酶 |
The Effect of Pb Stress on Roots and Leaves Protein and Root Antioxidant Enzyme Activities of Aegiceras corniculatum Seedling |
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| CAI Jian-xiu et al.The Effect of Pb Stress on Roots and Leaves Protein and Root Antioxidant Enzyme Activities of Aegiceras corniculatum Seedling[J].Journal of Anhui Agricultural Sciences,2010,38(6):2903-2905,2926. |
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| Authors: | CAI Jian-xiu |
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| Institution: | School of Chem.&Bioscience;Quanzhou Normal University;Quanzhou;Fujian 362000 |
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| Abstract: | Objective]The aim was to study the resistance of Aegiceras corniculatum to heavy metal pollution.Method] using water culture experiment,the effect of different density(0.1,0.5,1.0,2.0,3.0 mmol/L) Pb stress on roots and leaves protein and root antioxidant enzyme activities of Aegiceras corniculatum seedling were studied.Result] The study showed that in the process of stress,the seedling could be influenced by time limit and the density of plumbum.The root and leaf proteins content increased and then showe... |
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| Keywords: | Aegiceras corniculatum Pb Protein Peroxide enzyme Hyperoxide mutase |
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