病毒侵染寄主后植物的氨基酸糖蛋白含量发生改变 ,导致病毒传播介体生物学特性的改变 ,大豆花叶病毒 (ＳＭＶ)侵染大豆后碳氮代谢发生变化 ,病毒明显地抑制寄主碳水化合物代谢 ,促进寄主氮化物的代谢 ,有利于病毒的复制和增殖。西瓜花叶病毒 2号 (ＷＭＶ 2 )为新疆甜瓜的优势种 The amino acid glycoprotein changes after the virus infects the host, resulting in the change of the biological characteristics of the virus-transmitted mediator. After the soybean mosaic virus (SMV) invades the soybean, the carbon-nitrogen metabolism changes, and the virus obviously inhibits the host carbohydrate metabolism , Promote host nitrogen metabolism, is conducive to virus replication and proliferation. Watermelon mosaic virus 2 (WMV 2) is the dominant species of Xinjiang melon