Host and symptoms Tobacco mosaic virus

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tobacco mosaic virus symptoms on tobacco



tobacco mosaic virus symptoms on orchid


like other plant pathogenic viruses, tmv has wide host range , has different effects depending on host being infected. tobacco mosaic virus has been known cause production loss flue cured tobacco of 2 percent in north carolina. known infect members of 9 plant families, , @ least 125 individual species, including tobacco, tomato, pepper (all members of useful solanaceae), cucumbers, , number of ornamental flowers. there many different strains. first symptom of virus disease light green coloration between veins of young leaves. followed development of mosaic or mottled pattern of light , dark green areas in leaves. rugosity may seen infected plant leaves display small localized random wrinkles. these symptoms develop , more pronounced on younger leaves. infection not result in plant death, if infection occurs in season, plants stunted. lower leaves subjected mosaic burn during periods of hot , dry weather. in these cases, large dead areas develop in leaves. constitutes 1 of destructive phases of tobacco mosaic virus infection. infected leaves may crinkled, puckered, or elongated. however, if tmv infects crops grape , apple, symptomless.








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