铅胁迫对青檀幼苗生理生态的影响  

Effects of Lead on Physiological Ecology of Pteroceltis tatarinowii Maxim. Seedlings

作　　者：杨红兰[1] 冯守富 慕光杉[1] 邱诗铭[1] 黄秋婵[1] 邓翠萍 

机构地区：[1]广西民族师范学院,广西崇左

出　　处：《植物学研究》2018年第1期54-59,共6页Botanical Research

基　　金：广西高校科学技术研究重点项目:重金属对白头叶猴保护区优势植物胁迫机制的研究(2013ZD073)。

摘　　要：用含硝酸铅的霍格兰氏营养液处理土培的青檀幼苗。60天后对幼苗的冠幅、株高、叶绿素含量、丙二醛含量、可溶性糖含量进行分析。结果表明:经铅胁迫后,丙二醛和可溶性糖在根中含量较高;低浓度的铅胁迫对青檀幼苗的光合作用有明显抑制作用,高浓度铅胁迫已经危害到了青檀幼苗的生长。In the soil culture experiment, Pteroceltis tatarinowii Maxim. seedlings were treated with Hoagland nutrient solution containing different concentrations of Pb(NO3)2. After sixty days, the tree crown width, plant height, chlorophyll, malondial dehyde (MDA) content and soluble sugar content in the seedlings were analyzed. Results are as the following: After lead stress, the MDA and soluble sugar content is higher in root. The lead stress of low concentration has a significant inhibitory effect on the photosynthesis of Pteroceltis tatarinowii Maxim. seedlings, as the lead stress of high concentration has endangered the growth of Pteroceltis tatarinowii Maxim. seedlings.

关 键 词：铅胁迫 青檀 幼苗 生理生态 

分 类 号：S5[农业科学—作物学]