外源Ca^(2+)对高温下多叶羽扇豆生理指标的影响  

Effects of Exogenous Ca^(2+) on Physiological Indices of Lupinus pollhlla Lindl.under High Temperature Stress

作　　者：王庆[1] 刘安成[1] 张瑞博[1] 李艳[1] 尉倩[1] 庞长民[1] 

机构地区：[1]陕西省西安植物园陕西省植物研究,陕西西安710061

出　　处：《陕西林业科技》2015年第3期1-3,共3页Shaanxi Forest Science and Technology

摘　　要：以多叶羽扇豆为试验材料,通过喷施外源Ca2+,研究外源Ca2+对高温胁迫下多叶羽扇豆的生理指标的影响,探讨多叶羽扇豆的耐热性。结果表明:高温胁迫下,多叶羽扇豆细胞内的电解质外渗,膜透性增大,细胞膜受到损伤,叶绿素含量降低,MDA含量增高,SOD活性、POD活性升高。喷施CaCl2可降低电解质外渗,降低细胞膜的伤害率。外源Ca2+对降低MDA含量有一定的作用,可帮助多叶羽扇豆抵抗高温环境。喷施外源Ca2+能够提高SOD、POD酶活性,不能提高多叶羽扇豆叶片内叶绿素含量。Taking the Lupinus polyphylla Lindl.as experimental materials,the effects of exogenous Ca2＋on the physiological indices under the high-temperature stress treatment was studied.The result showed that the high-temperature stress could increase electrolyte leakage and membrane permeability of leaf cells and the chlorophyll content declined while MDA content,SOD activity and POD activity increased.The exogenous Ca2＋can alleviate the electrolyte leakage and the damage to cell membrane caused by heat stress.Spraying exogenous Ca2＋can reduce MDA content,improve the activity of SOD and POD enzyme but for improving the chlorophyll content.

关 键 词：多叶羽扇豆 高温胁迫 外源CA2+ 生理指标 

分 类 号：S682.19[农业科学—观赏园艺]