福建林学院学报2013，Vol.33Issue(3)：249-252,4.
不同浓度水杨酸诱导桉树抗焦枯病保护酶活性变化
Cylindrocladium quinqueseptatum resistant protective enzyme activity variation in eucalyptus induced by different concentrations of salicylic acid
摘要
Abstract
Taking the resistant cuhivar Eucalyptus grandis × E.urophylla of 11 eucalyptus cultivars collected in Fujian as materials,and spraying the leaves with the concentrations of 0,1.0,1.5,2.0,2.5 and 3.0 mmol,L-1 of exogenous plant growth substances salicylic acid (SA) to improve eucalyptus resistance against Cylindrocladium quinqueseptatum,it was discovered that SA effectively induced eucalyptus to improve resistance against C.quinqueseptatum.Different concentrations of SA performed distinct induction.With the increasing of the concentration of salicylic acid,peroxidase,phenylalanine ammonialyase,superoxide dismutase and polyphenoloxidase activities in eucalyptus leaves presented the trend of rising first then decline.Among them,when concentration of salicylic acid was 2.0 mmol·L-1,peroxidase,phenylalanine ammonialyase,superoxide dismutase and polyphenoloxidase activities in eucalyptus leaves were the highest.关键词
水杨酸/桉树/焦枯病/保护酶/抗病性Key words
salicylic acid/ Eucalyptus / Cylindrocladium quinqueseptatum/ protective enzyme/ resistance分类
农业科技引用本文复制引用
唐芬,冯丽贞,林燕萍..不同浓度水杨酸诱导桉树抗焦枯病保护酶活性变化[J].福建林学院学报,2013,33(3):249-252,4.基金项目
福建省自然科学基金资助项目(2013J01074) （2013J01074）
福建省林业厅科学基金资助项目(SCZ10044). （SCZ10044）
