杨树冰核细菌溃疡病寄主生理生化变化研究(Ⅰ)  

Physiological and biochemical changes of polar infected by ice nucleation activation bacterial canker disease(I)

作　　者：毛得奖[1] 于君瑞[1] 王成忠[1] 项存悌[2] 

机构地区：[1]山东轻工业学院食品与生物工程学院,山东济南250100 [2]东北林业大学森林资源与环境学院,黑龙江哈尔滨150000

出　　处：《山东轻工业学院学报（自然科学版）》2004年第4期52-56,共5页Journal of Shandong Polytechnic University

摘　　要：幼树在感染冰核细菌溃疡病的初期,树皮含水率比健康植株略微升高,病株和健株的树皮含水率对胁迫在短时间内作出的响应不同。病株在发病初期树皮和木质部的K、Ca、P含量比健康植株高,Fe含量基本上低于健康植株。随着病情的加重,K、Ca、Fe含量降低。The percent of moisture content of infected bark is a little higher than that of the healthy bark when the trees are young and the cankers are not serious.When the infection is not serious,it makes the content of potassium,calcium,phosphorus of infected bark increase,yet the serious infection makes the hosts have opposite appearances.

关 键 词：植株 病株 树皮 杨树 冰核细菌 生理生化变化 溃疡病 健康 初期 病情 

分 类 号：S436[农业科学—农业昆虫与害虫防治] S792.11[农业科学—植物保护]