First Report of Sweet potato chlorotic stunt virus and Sweet potato feathery mottle virus Infecting Sweet Potato in Spain

Plant Disease
R A ValverdeF Valdés

Abstract

Sweet potato chlorotic stunt virus (SPCSV), family Closteroviridae and Sweet potato feathery mottle virus (SPFMV), family Potyviridae are whitefly and aphid transmitted, respectively, which in double infections cause sweet potato virus disease (SPVD) that is a serious sweet potato (Ipomoea batatas Lam.) disease in Africa (2). During the past decade, sweet potato plants showing symptoms similar to SPVD have been observed in most areas of Spain. Nevertheless, not much information is available about the identity of the viruses infecting this crop in Spain. During the summer of 2002, sweet potato plants with foliar mosaic, stunting, leaf malformation, chlorosis, and ringspot symptoms were observed in several farms in Málaga (southern Spain) and Tenerife and Lanzarote (Canary Islands, Spain). Vine cuttings were collected from 21 symptomatic plants in Málaga and from eight plants on Lanzarote and six on Tenerife. Scions were grafted to the indicator hosts, Brazilian morning glory (I. setosa) and I. nil cv. Scarlett O'Hara. Three weeks after graft inoculations, all plants showed various degrees of mosaic, chlorosis, leaf malformation, and stunting. Four field collections (two from Málaga, one from Tenerife, and one from Lanzarote) wit...Continue Reading

Citations

Aug 27, 2021·Plant Disease·Francis Wanjohi KiemoZoltán Szabó

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