| Pb胁迫对柳树根系形态和生理特性的影响 |
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| 引用本文： | 房娟,陈光才,楼崇,张建锋.Pb胁迫对柳树根系形态和生理特性的影响[J].安徽农业科学,2011,39(15):8951-8953,8989. |
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| 作者姓名： | 房娟 陈光才 楼崇 张建锋 |
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| 作者单位： | 南京林业大学森林资源与环境学院,江苏南京,210037;中国林业科学研究院亚热带林业研究所,浙江富阳,311400;中国林业科学研究院亚热带林业研究所,浙江富阳,311400;南京林业大学森林资源与环境学院,江苏南京,210037 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金重点项目(RISF6803); 江苏省科技支撑计划项目(BE2009603,BE2008636) |
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| 摘 要： | 目的]评价柳树对重金属Pb的忍耐能力及应用于植物修复的潜力。方法]采用溶液培养研究了不同浓度Pb胁迫对苏柳172和垂柳2种柳树的根系形态、根系活力以及叶片保护酶活性和渗透调节物质的影响。结果]Pb处理显著抑制2种柳树的根系伸长,垂柳根系表面积、根体积、根平均直径先增后降,苏柳172根系表面积、根体积、根平均直径均受到Pb的显著抑制。2种柳树的根系活力均下降;超氧化物歧化酶（SOD）活性、过氧化物酶（POD）活性和脯氨酸（Pro）含量均先增加后下降;可溶性蛋白含量、叶绿素含量在一定程度内均降低,只是变化的幅度和进程不同。结论]为柳树应用于重金属修复具有重要的参考价值。
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| 关 键 词： | 柳树 Pb胁迫 根系形态 保护酶活性 渗透调节 |
Effect of Lead Stress on Root Morphology and Physical Characteristic of Willow (Salix spp.) |
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| FANG Juan et al.Effect of Lead Stress on Root Morphology and Physical Characteristic of Willow (Salix spp.)[J].Journal of Anhui Agricultural Sciences,2011,39(15):8951-8953,8989. |
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| Authors: | FANG Juan |
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| Institution: | FANG Juan et al(College of Forest Resources and Environment,Nanjing Forestry University,Nanjing,Jiangsu 210037) |
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| Abstract: | Objective]The purpose of the research was to evaluate the potential of willow(Salix spp.) applying in phytoremediation of lead polluted environment.Method]Two willow species,Salix jiangsuensis CL'J172',and Salix babylonica were selected and the root morphology and physical characteristic under the lead stress in solution culture were studied.Result]The results showed that root length was significantly decreased under lead stress.Root surface area,root volume,and average diameter of root in Salix babyloni... |
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| Keywords: | Salix Lead stress Root morphology Protective enzyme activity Osmoregulaton |
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