苯丙氨酸三尖杉酯碱（ｈａｒｉｎｇｔｏｎｉｎｅ）对烟草花叶病毒（Ｔｏｂａｃｏｍｏｓａｉｃｖｉｒｕｓ＝ＴＭＶ）具有一定的钝化作用，其中１０～８０ｍｇ／Ｌ，在烟草和蔓陀罗上测定对ＴＭＶ的抑制钝化效果分别为４５．１％～８５．３％；在普通烟草上，于接种前后分别喷使４０ｍｇ／Ｌ，对病害初侵染的作用效果分别为７６．３％和６４．９％。试验结果表明苯丙氨酸三尖杉酯碱是良好的抗植物病毒的物质。 Phenylalanine haringtonine has some passivation effects on tobacco mosaic virus (Tobacomvirus = TMV), of which 10-80 mg / L inhibits the passivation of TMV on tobacco and on datura The results were 45.1% ~ 85.3% respectively. In general tobacco, 40mg / L was sprayed before and after inoculation, and the effect on initial infection was 76.3% and 64.9% respectively. The results show that phenylalanine harringtonine is a good anti-plant virus substance.