@Article{phyton.2021.016664,
AUTHOR = {Mustansar Mubeen, Yasir Iftikhar, Aqleem Abbas, Mazhar Abbas, Muhammad Zafar-ul-Hye, Ashara Sajid, Faheema Bakhtawar},
TITLE = {Yellow Vein Mosaic Disease in Okra (<i>Abelmoschus esculentus</i> L.): An Overview on Causal Agent, Vector and Management},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {90},
YEAR = {2021},
NUMBER = {6},
PAGES = {1573--1587},
URL = {http://www.techscience.com/phyton/v90n6/43022},
ISSN = {1851-5657},
ABSTRACT = {Okra (<i>Abelmoschus esculentus</i> L.) belongs to the <i>Malvaceae</i> family and is one of the most essential and popular
vegetables globally. It is rich in proteins, carbohydrates, and vitamins. Abiotic and biotic factors threaten okra
productivity. Okra yellow vein mosaic disease (OYVMD) is the most destructive disease of okra. The causal agent,
[(i.e., Okra yellow vein mosaic virus (OYVMV)] of this disease belongs to the family <i>Geminiviridae</i> and genus
<i>Begomovirus</i>. OYVMV is a monopartite with additional ssDNA molecule. This virus has two components
DNA-A for protein coding and DNA-B for symptoms induction. Whitefly transmits OYVMV in persistent manner. Characteristic symptoms of OYVMV infected okra plants are chlorosis, dwarfing, and yellowing of veins and
fruits. High temperatures with moderate rainfall enhance the development of OYVMV disease and the whitefly
population. However, high humidity with low temperature and rainfall has no significant role in developing the
OYVMD and whitefly population. Moreover, the virus also affects the secondary metabolites in the infected okra
plants. The virus can be managed through various strategies including the application of plant defense activators,
the development of resistant varieties and by controlling its vector via pesticides and plant extracts. Various plant
defense activators such as monopotassium phosphate (KH<sub>2</sub>PO), salicylic acid, benzoic acid, and citric acid
enhance resistance in okra against OYMVD. In addition, the resistance to OYMVD can also be achieved by successfully incorporating high yielding but resistant cultivars of acceptable quality. In this review, we have discussed
history, economic impact, symptomology, disease development under a natural environment, genetics and management of OYVMV.},
DOI = {10.32604/phyton.2021.016664}
}