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In 2014, a total of 108 symptomatic watermelon samples were collected in Greece and analysed by DAS-ELISA using polyclonal antisera against the most common aphid-transmitted viruses. Cucumber mosaic virus (CMV) was detected in 8 of 108 plants tested. Five of these plants collected at Lesvos were...
Compared to other vegetable crops, the major viral constraints affecting pepper crops in the Mediterranean basin have been remarkably stable for the past 20 years. Among these viruses, the most prevalent ones are the seed-transmitted tobamoviruses; the aphid-transmitted Potato virus Y and Tobacco...
A yellowing of buttercup squash (Cucurbita pepo var. oleifera) leaves was observed in southern Moravia, Czech Republic. Double-antibody sandwich-ELISA revealed that 33 samples were infected with Zucchini yellow mosaic virus and 5 with Cucurbit aphid-borne yellows virus (CABYV). The positive samples ...
Several aphid non-transmissible strains of zucchini yellow mosaic virus (ZYMV) have been described, in relation with mutations in the 2 viral proteins required for transmissibility, coat protein and helper component. Assistance mechanisms were previously shown to allow transmission of such strains...
The nucleotide sequence of the helper component protease (HC-Pro) genes of 3 zucchini yellow mosaic potyvirus (ZYMV) strains was compared with that of a helper-deficient strain of ZYMV-HC. The comparisons revealed 3 unique deduced amino acid differences. Two of these mutations were located in...