杨树树皮内过氧化物酶和多酚氧化酶活性与抗溃疡病的关系  

Relation Between Peroxidase and Polyphenoloxidase Activities in Poplar Bark and Canker-Resistance

作　　者：赵仕光[1] 景耀[1] 杨俊秀[1] 

机构地区：[1]西北林学院森林资源保护系,陕西杨陵712100

出　　处：《西北林学院学报》1993年第3期13-17,共5页Journal of Northwest Forestry University

摘　　要：通过对18个杨树品种和无性系田间发病情况调查,排出了对溃疡病的抗性序列,同时,通过在生长季节初期,测定健康杨树树皮内过氧化物酶和多酚氧化酶的活性,分析了这两种酶的活性与杨树抗溃疡病的关系。结果表明,这两种酶的活性与树种对溃疡病的抗病性呈正相关,过氧化物酶和多酚氧化酶活性强,树种的抗病性就强;反之则弱。酶的活性高低可以做为杨树抗溃疡病育种和抗病性测定中的一个“抗性指标”。Determines the peroxidase(PO) and polypheneoloxidase(PPO) activities in poplars' bark of 18 varieties and clones. Their order of canker-resistance or relation between the Po and PPO activities and canker-resistance were studied. In the initial stage of growing season, PO and PPO activities in barks have a positive correlation with poplars' canker-resistance. This relationship can be applied as a 'resistance index' in breeding canker-resistant poplars.

关 键 词：杨树 溃疡病 过氧化物酶 抗病性 

分 类 号：S763.721.1[农业科学—森林保护学]