Plant virus disease brings great economical damage.
植物病毒病害造成重大的经济损失。
Plant virus disease is one of the most important diseases of crops and causes serious economic losses.
植物病毒病是农业生产中发生普遍、危害严重的一类病害，每年给农业生产带来很大的经济损失。
Therefore, it becomes a hot research field to screen and develop antiviral activity from microbe for controlling plant virus disease.
因此，筛选、开发微生物源抗植物病毒活性物质是防治植物病毒的主要研究方向。
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