Reducing the biosynthesis of condensed tannin in winged bean (Psophocarpus tetragonolobus (L.) DC.) by virus-induced gene silencing of anthocyanidin synthase (ANS) gene.

ABSTRACT: The Underutilized legume-winged bean (Psophocarpus tetragonolobus (L.) DC.) and its various parts are infested with condensed tannin (CT) or proanthocyanidin (PA). CT has anti-nutritional effect as it adversely affects the digestion of proteins, minerals and vitamin among ruminants and humans. It is also responsible for low protein digestibility and decreased amino acid availability. One of the probable reasons of underutilization of P. tetragonolobus is due to its infestation with CT. Histochemical staining of various tissues of P. tetragonolobus with dimethylcinnmaldehyde (DMACA) developed a deep-blue colour indicating the presence of polyphenolic condensed tannin. Structural monomeric unit catechin and epi-catechin were reported to be responsible for biosynthesis of

SUBMITTER: Singh V 

PROVIDER: S-EPMC9763518 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature