Vaiyapuri Balasubramanian

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Banana bunchy top disease (BBTD) caused by Banana bunchy top virus (BBTV) is one of the most devastating diseases of banana and poses a serious threat for cultivars like Hill Banana (Syn: Virupakshi) and Grand Naine in India. In this study, we have cloned and sequenced the complete genome comprised of six DNA components of BBTV infecting Hill Banana grown(More)
Banana bract mosaic virus (BBrMV), a member of the genus Potyvirus, family Potyviridae, is the causal agent of the bract mosaic disease (BBrMD) that causes serious yield losses in banana and plantain in India and the Philippines. In this study, global genetic diversity and molecular evolution of BBrMV based on the capsid protein (CP) gene were investigated.(More)
β-1,3-Glucanases are abundant in plants and have been characterized from a wide range of species. They play key roles in cell division, trafficking of materials through plasmodesmata, in withstanding abiotic stresses and are involved in flower formation through to seed maturation. They also defend plants against fungal pathogens either alone or in(More)
The first complete genome sequence of an Indian isolate (TRY) of Banana bract mosaic virus (BBrMV) was determined following virus RNA extraction from the French plantain cv. Nendran (AAB). The complete genome was 9711 nucleotides excluding the poly(A) tail and had a genome organization similar to that of a Philippine (PHI) isolate characterized earlier.(More)
Crop plants have evolved an array of mechanisms to counter biotic and abiotic stresses. Many pathogenesis-related proteins are expressed by plants during the attack of pathogens. Advances in recombinant DNA technology and understanding of plant–microbe interactions at the molecular level have paved the way for isolation and characterization of genes(More)
Natural colorants such as anthocyanins, betalains, carotenoids, curcuminoids and chlorophylls have been widely used in the food processing industry and in beverages. Most of these colorants constitute part of human dietary components and are considered to be harmless and non-toxic. As a part of the study of natural products to identify non-toxic cancer(More)
In continuation of our studies of natural and synthetic products as cancer chemopreventive agents, we have examined a number of naphthoquinone derivatives including monomeric, dimeric and tetrameric naphthaquinones occurring in the Diospyros and other selected plant genera. Several synthetic naphthoquinones were also evaluated. Initially these compounds(More)
In continuation with our studies to uncover cancer chemopreventive effects of non-toxic natural colorants and other products of biologic and synthetic origin, we tested several Food and Drug Administration-approved synthetic colorants for antitumor promoting potential by the in vitro Epstein-Barr virus early antigen activation in Raji cells in response to(More)
The genus Ensete belongs to the family Musaceae of the order Zingiberales is grown throughout Africa and Southern Asia and contains as many as nine species. Ensete superbum (Roxb.) Cheesman, (2n = 18) commonly known as Ensete, is a large herb grown in India. The plant is wellknown in the Western Ghats [2], Anaimalai hills, Sirumalai hills, Lower Pulney(More)
Banana bract mosaic virus (BBrMV) is a serious constraint in the production of banana and plantain in India. In this study, we have cloned, sequenced and analyzed the helper component proteinase (HC-Pro) gene of 22 isolates from India and compared with previously reported BBrMV isolates. Sequence identity of BBrMV isolates encoding HC-Pro gene, were 92–100(More)