Tobacco Mosaic Virus
Tobacco mosaic virus (TMV) is a virus that infects a wide variety of plants and is the type species of the genus Tobamovirus. TMV is one of the oldest plant viruses known and is widely studied due to its significant economic impact on global crop production and its utility as a model for virus research. TMV is usually transmitted by mechanical means between plants, where it enters the plant through tiny wounds in the leaves and spreads within the mesophyll tissue. Symptoms of TMV infection range from yellow-green mottling and vein-clearing of leaf tissue to stunted growth, decreased yield, and death in severe cases. TMV can also be controlled by using various methods such as cultural practices, resistant varieties, and chemical treatments.
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