Soil has recently emerged as a significant medium for disseminating wheat mosaic virus. The two viruses share similarities and are closely related; one is the soil-borne wheat mosaic virus (SBWMV), and the other is the tobacco mosaic virus (TMV) . Tomatoes, peppers, eggplants, tobacco, spinach, petunias, and marigolds are all members of the family that are susceptible to infection by the tobacco mosaic virus, the earliest known plant virus. Four proteins of the structural capsid or coat protein (CP) are encoded by the genes of the tobacco mosaic virus (TMV) . The viral coat protein (CP) is a multifunctional protein involved in nearly every step of the virus life cycle . When the CP N-terminal region is deleted , there are severe symptoms in wheat, maize, rye, and barley, among other plants.