Description

Abstract: Peanut stripe viris (WStV) is a member of the potyvirus group; it is transmitted mechanically by aphids (nonpersistently)

and through gl,,undnut (Arwhis hytlogaea) seed. PStV naturally infects groundnut in India, Indonesia, Malavsia, Myanmar,

People’s Republic of China, Philippines, Thailand, USA, and Vietnam. Different isolates of PNtV induce different symptoms in groundnut. In the USA, a striping symptom is ,omnmon; however, in Southeast Asia lte most common s mptoms are dark green blotches and riig spots. One good local lesion host is Chwototodium amariticolorand the propagation hosts are Lupinies albus and Nicotiana bcuthartima.Antisera hove been produced for several PStV isolates and serological tests to detect tie virus in fohage and seed are available. Based on serology and pcpt:de profiling of the coat protein, PStV is related to blackeve cowpea mosaic virus. Studies on the genome organization o”PSt’ at the molecular level have been initiated, and the information available so far suggests !hat it is closely related to scybean mosaic virus, watermelon mosaic virus, and 7ucchini yellow mosaic virus with an amino aci sequence o’umology tiabout 74’%. Resistance to PStV has not been identified in commercial cultivars of groundnut. Based on available epidemiological information, disease management strategies are discussed.