Abstract
Series of experiments were conducted to identify the possible antifungal components of Chenopodium album leaves for the management of a highly destructive soil-borne fungal pathogen Sclerotium rolfsii. A 4% methanolic extract caused up to 82% reduction in biomass of the target organism. This extract was partitioned using solvents of variable polarities, and the obtained subfractions were evaluated for their activity against S. rolfsii. The best antifungal activity was detected for the ethyl acetate subfraction (60–74%) followed by n-hexane (51–69%), n-butanol (50–60%), chloroform (20–40%) while the aqueous sub-fraction had the lowest activity (9–35%) as detected by the decrease in biomass of the pathogen. Ethyl acetate and n-hexane sub-fractions were analyzed for their chemical constituents by GC–MS technique. Literature survey showed that among the identified compounds kitazin P, imidazole-4-carboxylic acid, 2-fluoro-1-methoxymethyl-, ethyl ester and 9,12,15-octadecatrienoic acid, 2,3-dihydroxypropyl ester, (Z,Z,Z)- had antifungal activities against other fungal species and could be responsible for control of S. rolfsii by methanolic extract in the present study.
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