Involvement of Phenolic Compounds and Their Composition in the Defense Response of Fusarium oxysporum infected Berangan Banana Plants

Fusarium wilt is one of the most common destructive banana diseases which causes great losses to global production. Berangan banana, known be very susceptible towards this disease greatly affected. Upon infection, oxidative burst involving rapid accumulation reactive oxygen species first responses a plant defense against biotic and abiotic stress. Secondary metabolites play an essential role in scavenging these toxic radicals. In study, number phenolic compounds flavonoids were identified changes documented. Compounds such as quinic acid, ferulic caffeoyl glucose, p-coumaric syringic sinapic aconitic caffeic p-hydroxybenzoic ascorbic kaempferol-rhamnose-hexose, quercetin, catechin, rutin, isorhamnetin 3-O rutinoside increased after fungal infection. Concomitantly, DPPH radical activity, reducing power, total antioxidant flavonoid content polyphenol also increased. Polyphenols, activities significantly on day 1 continued increase until 6 before gradually declining. The profiles analysed using liquid chromatography - mass spectroscopy (LCMS). properties found closely related system.