安徽农业科学2009，Vol.37Issue(21)：10253-10254,10257,3.
复合重金属Pb /Zn对香樟生理特征的影响
Effects of Complex Heavy Metals Pb/Zn on the Physiological Characteristics of Paulowniu fortunel (seem) Hems.
摘要
Abstract
[Objective]The study aimed to study the effects of complex heavy metals (Pb/Zn) on physiological reponses of P. fortunel, and provide theoretical guidance for re-vegetating mine tailing with P. fortunel. [Method]A pot experiment was performed to investigate the effects of different concentration (0, 200, 400 and 800 mg/kg) of complex heavy metals on chlorophyll contents, antioxidant enzyme activities (SOD, POD and CAT), MDA and proline contents. [Result]Along with the increase concentration of complex heavy metals, chlorophyll a, chlorophyll b and total chlorophyll contents significantly decreased, but the chlorophyll a/b ration only significantly decreased at 800 mg/kg. Complex heavy metals had different effects on specific antioxidant enzyme. Complex heavy metals had significant restrain effects on POD, significant promoting effects on SOD, and promoting effects on CAT at low concentration but restrain effects on CAT at high concentration. Moreover, the contents of MDA and proline significantly increased along with the concentration of complex heavy metals. [Conclusion]Complex heavy metals had restrained effects on chlorophyll contents of P. fortunel and had different effects for specific antioxidant enzymes of P. fortunel.关键词
香樟/重金属/叶绿素/抗氧化酶/丙二醛/脯氨酸Key words
Paulowniu fortunel (seem) Hems./Heavy metals/Chlorophyll/Antioxidant enzyme/Malondialdehyde/Proline分类
农业科技引用本文复制引用
王锦文,白秀,陈锦峰,王江,张崇邦..复合重金属Pb /Zn对香樟生理特征的影响[J].安徽农业科学,2009,37(21):10253-10254,10257,3.基金项目
浙江省自然科学基金(Y507053). （Y507053）
