| Abstract: | Viral diseases have been studied in-depth for reducing quality, yield, health and longevity of the fruit, to highlightthe economic losses. Positive-sense single-stranded RNA viruses are more devastating among all viruses that infectfruit trees. One of the best examples is papaya ringspot virus (PRSV). It belongs to the genus Potyvirus and it islimited to cause diseases on the family Chenopodiaceae, Cucurbitaceae and Caricaceae. This virus has a seriousthreat to the production of papaya, which is famous for its high nutritional and pharmaceutical values. The plantparts such as leaves, latex, seeds, fruits, bark, peel and roots may contain the biological compound that can beisolated and used in pharmaceutical industries as a disease control. Viral disease symptoms consist of vein clearing and yellowing of young leaves. Distinctive ring spot patterns with concentric rings and spots on fruit reduceits quality and taste. The virus has two major strains P and W. The former cause disease in papaya while the later one in papaya. Virion comprises 94.4% protein, including a 36 kDa coat protein which is a component responsible for anon-persistent transmission through aphids, and 5.5% nucleic acid. Cross protection, development of transgeniccrops, exploring the resistant sources and induction of pathogen derived resistance have been recorded as effectivemanagement of PRSV. Along with these practices reduced aphid population through insecticides and plantextracts have been found ecofriendly approaches to minimize the disease incidence. Adoption of transgenic cropsis a big challenge for the success of disease resistant papaya crops. The aim of this review is to understand thegenomic nature of PRSV, detection methods and the different advanced control methods. This review article willbe helpful in developing the best management strategies for controlling PRSV. |
