安徽农业科学2011，Vol.39Issue(15)：8951-8953,8989,4.
Pb胁迫对柳树根系形态和生理特性的影响
Effect of Lead Stress on Root Morphology and Physical Characteristic of Willow (Salix spp. )
摘要
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 babylonica increased under the moderately lead stress. Root surface area,root volume,and average diameter of root in Salix jiangsuensis CL‘ J172’ were decreased significantly by lead. SOD activity, POD activity and Pro content increased under the moderately lead stress, while decline under extremely lead stress. Leaf soluble protein and chlorophyll content decrease under lead stress,though the trends differ for different species. [ Conclusion]This study had important references value to the mediation of heavy metal by willow.关键词
柳树/Pb胁迫/根系形态/保护酶活性/渗透调节Key words
Salix /lead stress/ Root morphology /Protective enzyme activity /Osmoregulaton分类
资源环境引用本文复制引用
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):8951-8953,8989,4.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) （RISF6803）
江苏省科技支撑计划项目(BE2009603,BE2008636). （BE2009603,BE2008636）
