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中文摘要：
采用水培试验方法，研究了不同浓度镉（Cd）（0、5、10、25和50mg·L^-1）胁迫条件下藤本植物金银花的生长和生理特性．结果表明：与对照相比，Cd胁迫对金银花的生长未造成明显影响，在5～50mg·L^-1 Cd处理下，其生物量无明显差异（P＞0．05），在低浓度Cd（5mg·L^-1）处理下生物量有所增加，叶、根生物量和总生物量分别增加了2．88％、2．33％和1．25％，说明金银花对cd具有较强的抗性．在低浓度Cd胁迫下，植物各器官的含水量和可溶性蛋白含量均有所降低，而根系和叶片的丙二醛含量分别增加51．90％和23．07％．叶绿素和类胡萝卜素含量则增加15．87％和24．89％，超氧化物歧化酶活性也显著增强．随着Cd浓度的增高，金银花体内的叶绿素和类胡萝卜素含量，以及超氧化物歧化酶活性均有所降低．
英文摘要：
By using hydroponics, the growth and physiological characteristics of Lonicera japonica at different concentrations （0, 5, 10, 25, and 50 mg· L^ -1 ） of cadmium （Cd） were studied. The resuits showed that compared with the control, Cd stress had lesser effects on the growth of L. japonica. Within the range of test Cd concentrations, L. japonica biomass had less difference （P 〉 0.05 ） with the control, and at low concentration of Cd （5 mg· L^-1 ）, the total biomass and the biomasses of leaf and root were increased by l. 25%, 2.88 and 2.33%, respectively, illustrating that L. japonica had stronger resistance against Cal. Under low concentration Cd stress, the water content and soluble protein content in plant organs had some decrease, while the malondialdehyde （MDA） content in root and leaf increased by 51.90% and 23.07% , respectively, leaf chlorophyll and carotenoid contents increased by 15.87% and 24.89% , respectively, and superoxide dismutase （SOD） activity increased significantly. With increasing Cd contents and SOD activity decreased to some extent. concentration, the chlorophyll and carotenoid
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