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昆虫病毒
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昆虫病毒
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insect viruses
昆虫病毒
泛指以昆虫为宿主的病毒。既能在脊椎动物体内或高等植物体内增殖,又能在昆虫体内增殖的病毒很多,如动物病毒中的披膜病毒科甲病毒属的全部成员;黄病毒科、布尼亚病毒科的大部分成员;还有植物病毒中呼肠孤病毒科与弹状病毒科的许多成员。从生物学角度讲,这些病毒是将昆虫作为临时宿主或介体,用以传播,因此被视为虫媒病毒。它们与昆虫建立了平衡关系,虽能在昆虫体内增殖复制,但一般对昆虫不显示病原性、不引起昆虫发病死亡。狭义的专指以昆虫为主要的或唯一的宿主并对昆虫有致病性的病毒。
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