Melon rugose mosaic virus, the cause of a disease of watermelon and sweet melon |
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| Authors: | PHILIP JONES SAEED BA ANGOOD† JOHN M CARPENTER |
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| Institution: | *Department of Plant Pathology, Rothamsted Experimental Station, Harpenden, Herts. AL5 2JQ, England;†Crop Protection Department, University of Aden, P.O. Box 6172, Khor Masker, People's Democratic Republic of Yemen |
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| Abstract: | A mechanically transmissible virus with isometric particles c. 32 nm in diameter, was isolated from infected watermelons and sweet melons in the People's Democratic Republic of Yemen. Purified virus preparations contained two major sedimenting components with sedimentation coefficients of 61S and 117S. In isopycn ic centrifugation in CsCl the particles formed a single band of buoyant density 1.39 g cm-3. Preparations of virus particles comprised of a single polypeptide of mol. wt c. 22 000 and ssRNA of mol. wt 2.1 × 106. The virus was serologically related to three of six subgroups of tymoviruses tested. The name melon rugose mosaic virus is proposed for this newly described virus. |
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