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    • 52. 发明申请
    • NOVEL RECOMBINANT BACULOVIRUS, CONSTRUCTION METHOD THEREOF AND INSECT PESTICIDAL COMPOSITION CONTAINING THE SAME
    • 新型重组芽孢杆菌,其构建方法和含有其的杀虫剂组合物
    • WO99051721A1
    • 1999-10-14
    • PCT/KR1998/000338
    • 1998-10-28
    • C12N15/09A01N63/00C07K14/325C12N7/00C12N7/01C12N15/866C12P21/02A61K39/12C12N15/32C12N15/33C12N15/62
    • C12N15/86A01N63/00C07K14/325C12N2710/14143
    • A recombinant baculovirus, which produces a recombinant polyhedra made up of a baculovirus polyhedrin (PH), a Bacillus thuringiensis crystal protein (CP) and jellyfish Aequorea victoria green fluorescent protein (GFP), is constructed by introducing a transfer vector carrying a fusion gene encoding a fusion protein in which the PH, the CP and the GFP are directly linked from N-terminal to C-terminal, in sequence, and a wild-type baculovirus into an insect cell, simultaneously, and culturing the cell. This baculovirus transfer vector pColorBtrus is constructed by synthesizing the GFP-coding DNA fragment from plasmid pGFP, the PH gene from wild-type Autographa californica Nucleopolyhedrovirus, and aCry1Ac gene from plasmid pPN6.6 carrying a Bacillus thuringiensis Cry1Ac gene by polymerase chain reactions, and inserting first the GFP-coding DNA fragment and the PH gene in baculovirus expression vector pAcUW31 in such a way that the 5'-end of the GFP-coding DNA fragment is linked to the 3'-end of the PH gene and then, the Cry1Ac gene between the PH gene and the GFP-coding DNA fragment. The recombinant virus can kill insect pests with high pathogenicity within a short time, and is equipped with a monitoring device for infected insects, so that it can be prevented from being overused.
    • 通过引入携带融合基因编码的转移载体构建重组杆状病毒,其由杆状病毒多角体蛋白(PH),苏云金芽孢杆菌晶体蛋白(CP)和水母Aequorea维多利亚绿色荧光蛋白(GFP)构成的重组多面体 将其中PH,CP和GFP依次从N端直接连接到C末端的融合蛋白,将野生型杆状病毒同时进入昆虫细胞,并培养细胞。 该杆状病毒转移载体pColorBtrus是通过聚合酶链反应合成来自质粒pGFP的GFP编码DNA片段,来自野生型苜蓿苜蓿核多角体病毒的PH基因和携带苏云金芽孢杆菌Cry1Ac基因的质粒pPN6.6的Cry1Ac基因构建的, 首先在杆状病毒表达载体pAcUW31中首先插入GFP编码的DNA片段和PH基因,使GFP编码的DNA片段的5'末端连接到PH基因的3'末端,然后, PH基因与GFP编码DNA片段之间的Cry1Ac基因。 重组病毒可以在短时间内杀死具有高致病性的昆虫,并配备感染昆虫的监测装置,以防止其被过度使用。