氯钾离子共体诱导后黄瓜叶片内酶活性的变化  

The Change of Enzyme Activities Induced with Copolymer of Chlorine and Potassium Ions in Cucumber Leaf

作　　者：杜俊卿[1] 云兴福[1] 马立国[1] 刘杰才[1] 

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019

出　　处：《华北农学报》2004年第2期32-36,共5页Acta Agriculturae Boreali-Sinica

基　　金：内蒙古自治区自然科学基金资助项目(KIZ276)

摘　　要：分别用浓度为0.2％,0.5％,1.0％,1.5％,2.0％的氯钾离子共体液,在黄瓜幼苗子叶期(子叶充分展开)和第一真叶期(第一真叶横宽 5 cm)进行2次诱导。然后对其第一真叶的POD,PPO,PAL活性进行测定。结果表明:不同浓度氯钾离子共体液处理后,POD,PPO,PAL活性均有不同程度的变化,变化趋势均为随时间的增加先升高、后降低,诱导后10 d左右达到最大值,且极显著高于对照。试验还筛选出导致POD,PPO,PAL活性变化最大的氯钾离子共体液的浓度范围为0.5％-1.0％。The cucumber seedling were induced by copolymer of chlorine and potassium ions with 0.2%, 0.5%, 1.0%, 1.5% and 2.0% concentration at stage of cotyledon and the first true leaf, then POD, PPO and PAL activities of the first true leaf were measured. The results showed that they were changed in the activities of POD, PPO and PAL after the plants were induced by different concentration copolymer of chlorine and potassium ions. They increased firstly, and then decreased. After induced 10 days, they were at the peak, and higher than that of control obviously. Meanwhile, the optimum concentrations were 0.5% and 1.0% by the treatment of copolymer of chlorine and potassium ions.

关 键 词：黄瓜 霜霉病 叶片 酶活性 氯钾离子共体液 诱导抗病性 多酚氧化酶 过氧化物酶 超氧化物歧化酶 苯丙氨酸解氨酶 

分 类 号：S642.2[农业科学—蔬菜学]