钙对干旱胁迫下草莓SOD、CAT、PPO活性的影响  

Effects of Calcium on Activity of SOD,CAT,PPO of Strawberry under Drought Stress

作　　者：彭淼[1] 钟晓红[2] 张玲 杨塞[1] 

机构地区：[1]湖南农业大学东方科技学院,湖南长沙410128 [2]湖南农业大学园艺园林学院,湖南长沙410128 [3]湖南省临武县农业局,湖南临武424300

出　　处：《长江大学学报（自科版）（中旬）》2009年第1期11-14,共4页Journal of Yangtze University(Nature Science Edition)

摘　　要：采用自然干旱胁迫的方法,以‘章姬’、‘丰香’为材料,研究了干旱胁迫下不同Ca2+浓度处理对草莓(Fragaria Ananassa Duchesne)叶片超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、多酚氧化酶(PPO)的影响。结果表明,在干旱胁迫下,外源钙能在一定程度上维持酶的活性,以减轻活性氧对草莓的伤害,从而在一定程度上提高草莓抗旱性,且不同处理之间存在差异,以10mmol/LCaCl2处理效果最好。Using ‘Zhangji’ and ‘Fengxiang’ as experimental material,the effect of different concentrations of calcium on the activity of SOD,CAT,PPO of strawberry under natural drought stress was studied . The results showed that the extent,exogenous calcium could keep the enzyme activities to reduce the active oxygen harm to strawberry and improve the drought resistance of strawberry. But different treatment have difference results.The 10 mmol/L CaCl2 treatment was the best.

关 键 词：草莓(Fragaria Ananassa Duchesne) 干旱胁迫 钙 超氧化物歧化酶 过氧化氢酶 多酚氧化酶 

分 类 号：Q945.78[生物学—植物学]