Influence of Virus Concentration on Expression of Cucumber Mosaic Virus Resistance in Pepper
نویسندگان
چکیده
Pepper lines L57 and L113 and cv.Pico are inoculated by 1, 5, 10, 25, 75 μg/ml cucumber mosaic virus (CMV) in inoculum. Both lines are resistant to the virus and cv.Pico is used as a susceptible control. The lines respond with the development of chlorotic (L57) and necrotic (L113) spots on the inoculated leaf. The virus is established only in the inoculated leaves and their petioles of the resistant lines but cv.Pico is inoculated systemically. The virus existence on the rubbed leaves is an indicator for the effectiveness of inoculation. Inoculum with virus concentration 1 μg/ml does not inoculate the leaves, with CMV concentration of 5 μg/ml inoculates 66,7% of the rubbed Pico and L57 leaves and 50% of the L113 ones. The higher concentrations (25 and 75 μg/ml) inoculate all the rubbed leaves. The mosaic symptoms on inoculated Pico plants are developed up to 14 days post inoculation. All L57 plants which are inoculated by 75 μg/ml virus in inoculum and 50% of these which are inoculated by 50 μg/ml are infected systemically. The resistance is overcome at 66,7% of L113 plants which are rubbed by 75 μg/ml CMV. The data suggest that the expression of CMV resistance in pepper depends on virus concentration in inoculum and it is different for the both lines.
منابع مشابه
Study of resistance to cucumber mosaic virus watermelon mosaic virus and zucchini yellow mosaic virus in melon cultivars
متن کامل
The effect of salicylic acid and jasmonic acid on the symptoms of the disease and the expression of defense genes on a greenhouse cucumber infected with CMV
Cucumber is one of the most important vegetable and summer crops economically and is the fourth most cultivated plant in the world after tomatoes and potatoes. In this study, the effect of plant inducers including salicylic acid and jasmonic acid on the viral disease of greenhouse cucumber with Cucumber mosaic virus (CMV) and also the expression of defense genes was investigated. Treatments inc...
متن کاملCharacterization of Cucumber Mosaic Virus From Mint in Tehran Province
Cucumber mosaic virus (CMV) is one of the causal agents of viral diseases that infected mint (Mentha spp.). CMV is a member of the cucumovirus genus in Bromoviridae family. The virus is naturally transmitted by aphids in a non-persistent manner.During growing season 2007-2008, leaf samples from plants of mint fields with symptoms of viral disease were collected in mint fieldas in Tehran provi...
متن کاملCharacterization of Cucumber Mosaic Virus From Mint in Tehran Province
Cucumber mosaic virus (CMV) is one of the causal agents of viral diseases that infected mint (Mentha spp.). CMV is a member of the cucumovirus genus in Bromoviridae family. The virus is naturally transmitted by aphids in a non-persistent manner.During growing season 2007-2008, leaf samples from plants of mint fields with symptoms of viral disease were collected in mint fieldas in Tehran provi...
متن کاملThe Influence of Crop Habitat and Control Strategies on Pepper Viruses in Andalusia (Spain)
Andalusia, southern Spain, is a major horticultural production region within the Mediterranean, where over 10,000 ha are dedicated to the production of pepper (Capsicum annuum L.). Approximately two-thirds of the area dedicated to this crop is in a greenhouse and the remaining one-third is comprised of open field crops. Using pepper as a model, we identified and compared the major diseases caus...
متن کامل