Antiviral and Antifungal of Ulva fasciata Extract: HPLC Analysis of Polyphenolic Compounds

The increasing usage of chemical control agents, as well fungicides to manage plant diseases, causes human and environmental health problems. Macroalgae represent a reservoir for tremendous variety secondary metabolites that display wide range biological activities. However, their anti-phytopathogenic properties are still being studied. current study was conducted investigate whether or not the macroalgae Ulva fasciata extract exhibits antifungal antiviral In this regard, organic extracts U. were tested capabilities against tobacco mosaic virus (TMV) three molecularly identified fungal isolates, Fusarium verticillioides, Alternaria tenuissima, Botrytis cinerea with accession numbers OP363619, OP363620, OP363621, respectively. Among concentrations, 100 µg/mL had best activity B. TMV, 69.26%and 81.25% inhibition rates, HPLC analysis profiling showed presence number phenolic flavonoid compounds widely known many line, 4-Hydroxybenzoic acid highest compound (12.3 µg/mL) present in extract, followed by ferulic (9.05 µg/mL). 7-hydroxyflavone (12.45 faciata rutin, which recorded concentration 7.62 µg/ mL. results show has properties, makes it possible source natural antimicrobial agents.