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G. E. Budge C. Ratti C. Rubies-Autonell D. Lockley M. Bonnefoy V. Vallega S. Pietravalle C. M. Henry 《European journal of plant pathology / European Foundation for Plant Pathology》2008,120(3):259-272
Twenty-one UK winter wheat cultivars were grown over three seasons at sites with natural inoculum sources of Soil-borne cereal mosaic virus (SBCMV) and Wheat spindle streak mosaic virus (WSSMV) located in France, Italy and the UK. Plants were assessed visually for virus symptoms and leaf extracts were tested
for the presence of each virus using enzyme-linked immunosorbent assays (ELISA). Cultivars showing little or no foliar symptoms
and low levels of virus in leaf tissue were classified as resistant to each virus. All the trials were taken to harvest and
agronomic data collected. At the most heavily infected sites, severe symptoms of SBCMV were observed in all UK cultivars except
Aardvark, Charger, Claire, Cockpit, Hereward and Xi 19. The latter cultivars exhibited either light or no symptoms and little
or no SBCMV infection in leaves. In fields with WSSMV, the virus failed to develop in Italy, but was detected in the leaves
of all the susceptible control cultivars at a site in France. However, no UK cultivar tested positive for WSSMV. Multi-site
analysis indicated that the presence of WSSMV did not increase the impact of SBCMV on the height, thousand-grain weight or
yield of UK cultivars. The wheat cultivars on test gave a similar response to SBCMV across three European countries. Possible
sources of SBCMV resistance are discussed. 相似文献
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