白粉菌侵染过程中不同抗性辣椒品种叶片3种酶活性变化  

Changes of Three Enzymes Activities in Resistance to Pepper Leveillula taurica

作　　者：王萱[1,2] 王立浩[1] 石延霞[1] 毛胜利[1] 李宝聚[1] 张宝玺[1] 

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081 [2]天津市农业高新技术示范园区管理中心,天津300384

出　　处：《中国蔬菜》2009年第22期53-57,共5页China Vegetables

基　　金：国家科技支撑计划(2006BAD01A07);农业部蔬菜遗传与生理重点开放实验室资助项目

摘　　要：以辣椒4个不同抗性品种为材料,研究成株期感染白粉菌后,叶片组织内苯丙氨酸解氨酶(PAL)、β-1,3-葡聚糖酶和几丁质酶的活性变化。结果表明,4个材料接种白粉病病原菌后3种酶活性均有所提高。受白粉菌侵染后,抗病品种的PAL和β-1,3-葡聚糖酶活性明显高于感病品种。几丁质酶的活性变化与辣椒对白粉病的抗性无关。Using four pepper （ Capsicum annuum L. ） varieties with different resistance level to Leveillula taurica （ Lev. ） Arn. , we studied the activities changes of PAL,β - 1,3 - glucanase and chitinase in leaf tissue. The results showed that the infection of pathogen of powdery mildew induced the increase of activities of PAL,β- 1,3 -glucanase and chitinase. The increased extents of enzyme activities of PAL and β - 1,3 - glucanase in resistant varieties were more than that in susceptible ones. It indicated that the relativity between activities changes of chitinase and resistant to Leveillula taurica （ Lev. Am. of pepper was not existing

关 键 词：辣椒 白粉菌 苯丙氨酸解氨酶 β-1 3-葡聚糖酶 几丁质酶 

分 类 号：S436.418[农业科学—农业昆虫与害虫防治]