了解一种植物病毒的传播方式,对于研究病毒和寄主植物的关系,采取有效的防治措施都很重要。植物病毒是通过伤口侵入植物体的。有时伤口是自然产生的,如一株植物和另一植株相摩擦产生伤口,但通常由携带病毒的其他生物引起伤口,使病毒侵入,这就是植物病毒的介体传播。携带病毒的生物则称为介体。另外,还有种子和花粉传毒,以及含病毒的植株通过无性繁殖而传播、菟丝子传播和土壤传播。人工传播病毒的方法,则还有机械接种和嫁接等。一、介体传播从流行病学观点来看,介体传播在植物病毒的传播中最为重要。在植物病毒密码中,传播介体种 Understanding of a plant virus transmission, for the study of the relationship between viruses and host plants, to take effective control measures are very important. Plant viruses invade the plant through the wound. Sometimes a wound is a natural occurrence, such as a plant rubs with another plant to produce a wound, but usually by other organisms carrying the virus to cause the wound to invade the virus, which is the spread of the virus of the plant virus. Organisms that carry the virus are called mediators. In addition, seeds and pollen are transmitted as well as virus-containing plants are propagated asexually, dodder and soil. Artificial transmission of the virus, then there are mechanical inoculation and grafting. I. MEDIA DISTRIBUTION From an epidemiological point of view, mediator transmission is most important in the spread of plant viruses. In plant virus codes, mediators of transmission