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Characterization of a Severe Virus-like Disease in Chardonnay Grapevines in Missouri

W. Qiu, J. D. Avery, Jr., and S. Lunden

November 2007

Brief

A severe virus-like disease emerged on Chardonnay vines in a Missouri vineyard that resulted in significant reduction of vine vigor and yield. The pathogens can be transmitted via cutting and grafting. Chardonnay, Cabernet franc and Baco franc vines that were grafted with the buds of the original diseased Chardonnay vines exhibited distinct vein-clearing symptom. The result of reverse transcription polymerase chain reaction indicated the association of Grapevine fanleaf virus with this disease.

doi:10.1094/PHP-2007-1119-01-BR

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