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转双抗虫基因741杨的抗虫效应及其规律研究
引用本文:高宝嘉,王永芳,王进茂,梁海永,杨敏生,张炬红.转双抗虫基因741杨的抗虫效应及其规律研究[J].生态学报,2004,24(2):297-301.
作者姓名:高宝嘉  王永芳  王进茂  梁海永  杨敏生  张炬红
作者单位:1. 河北农业大学林学院,保定,071000
2. 河北省农林科学院谷子研究所,石家庄,050031
基金项目:国家自然科学基金资助项目 (3 0 0 70 62 6),河北省自然科学基金资助项目 (3 0 2 3 12 )~~
摘    要:通过室内饲虫试验 ,应用昆虫的总死亡率、各龄期死亡率、各龄历期及发育速率、昆虫体重增长速率等指标 ,测定了转双抗虫基因 74 1杨的抗虫性。研究结果表明 ,转基因抗虫杨不同株系对昆虫的致死效应有显著差异 ;不同昆虫种类和同一昆虫幼虫的不同龄级对转基因杨株系的敏感性有明显差异 ,4种测试昆虫的敏感性强弱依次为 :杨小舟蛾 >美国白蛾 >杨扇舟蛾 >舞毒蛾 ,随着昆虫幼虫龄级的增加 ,昆虫对转基因杨株系的敏感性逐渐降低 ;高抗虫株系主要表现为对低龄幼虫的强致死作用 ,中等抗虫株系表现为对各龄幼虫稍低的但是持续的致死效应 ;各转基因杨株系对测试昆虫的生长和发育都有明显抑制作用 ,可导致昆虫的发育历期延长、发育速率和体重增长速率降低。

关 键 词:双价抗虫基因  741杨  抗虫性
文章编号:1000-0933(2004)02-0297-05
收稿时间:2002/12/5 0:00:00
修稿时间:8/4/2008 12:00:00 AM

Researches on the insect-resistant effect of transgenic hybrid poplar 741 with two insect-resistant genes
GAO Baoji,WANG Yongfang,WANG Jinmao,LIANG Haiyong,YANG Minsheng and ZHANG Juhong.Researches on the insect-resistant effect of transgenic hybrid poplar 741 with two insect-resistant genes[J].Acta Ecologica Sinica,2004,24(2):297-301.
Authors:GAO Baoji  WANG Yongfang  WANG Jinmao  LIANG Haiyong  YANG Minsheng and ZHANG Juhong
Institution:Forestry College; Agricultural University of Hebei; Baoding; China;
Abstract:The insect-resistant effect of transgenic hybrid poplar 741 with two insect-resistant genes was tested in laboratory. The indexes of general mortality, each instar mortality, development period and speed of each instar, weight increasing rate etc, were used for evaluations. Results showed that different clone of transgenic hybrid poplars had significant different insect resistances, and hereby four different resistant levels were divided. They were high resistant, moderate resistant, low resistant and non resistant with general mortalities over 75%, between 75%~40%, between 40%~15% and below 15% respectively. The sensitivity of different insect species and different instar larvae of insect to the clones of transgenic poplar varied obvious. Micromelaopha troglodyta (Graeser) was the most sensitive one,followed by American white moth (Hyphantria cunea Drury), Poplar prominent Clostera anachoreta (Fabricius)] and Gypsy moth Lymantria dispar (Linnaeus)]. The higher the instar of larvae, the less sensitive to the transgenic poplar. High resistant poplar showed strong killing effect to young larvae. Moderate resistant poplar showed lower but persistent killing effect to every instar larvae. And transgenic poplars showed obviously inhibiting effect on growth and development of insects also, they can bring about postponement of the development period and reduction of the development speed and weight increasing rate of insects.
Keywords:divalent insect-resistant genes  hybrid poplar 741  insect resistance
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