蚊母树对杭州新胸蚜虫瘿形成的生理生化响应  

Physiological and biochemical responses of Distylium racemosum to gall's formation

作　　者：巨云为[1,2] 朱萍[1] 施大伟[1] 覃金萍[3] 项杨[1] 周玲[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]江苏省有害生物入侵预防与控制重点实验室,江苏南京210037 [3]广西大学林学院,广西南宁530004

出　　处：《福建林学院学报》2012年第1期10-12,共3页Journal of Fujian College of Forestry

基　　金：重大森林病虫灾害防控技术的关键理论基础(201204501);国家林业局"948"项目(2008-4-56);2007年教育部林学国家级实验示范中心项目

摘　　要：为探明蚊母树对杭州新胸蚜虫瘿形成的生理生化响应,分别测定了健康蚊母树叶片(对照)、虫瘿形成初期和后期叶片的相对电导率、丙二醛(MDA)含量、蛋白质含量和超氧化物歧化酶(SOD)活性。结果表明,虫瘿的形成会导致蚊母树叶片的相对电导率、MDA含量显著高于同期的健康对照,其中虫瘿部分尤为明显;虫瘿形成初期受害叶片的蛋白质含量显著升高,以瘿边叶表现较为明显,虫瘿形成后期叶各部分的蛋白质含量也均显著较高;此外,受害叶片的SOD活性显著高于对照。在遭到杭州新胸蚜取食为害后,蚊母树能够启动一系列的生理生化响应机制。In order to explore the physiological response mechanism of Distylium racemosum to the Neothoracaphis hangzhouertsis＇s forming galls, the relative conductivity, malondialdehyde （MDA） content, protein content, superoxide dismutase （SOD） enzyme activity of the D. racemosum leaves in the initial and final stage of gall formation were tested in this paper, the contemporaneous healthy leaves were used for contrast. The results showed that gall formation could lead to relative conductivity and MDA content of the D. racemosum leaves significantly higher than the control, especially in the gall part. Gall＇s formation could induce increasing content of protein at its initial stage, more obvious in the near gall part, the protein content of each part of infested leaves were all significantly higher than the healthy control. The results also showed that the SOD enzyme activity of infested leaves was higher than the contemporaneous healthy control. All the physiology and biochemistry indexes showed that after N. hangzhouensis＇s feeding behaviour, D. racemosum started a series of physiology and biochemistry response mechanism to resist the attack.

关 键 词：蚊母树 虫瘿 生理生化响应 

分 类 号：S718.3[农业科学—林学]