Antifungal activity of saponins from Chenopodium quinoa Willd. against agriculturally important plant pathogenic fungi

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Hugo Alejandro Castro-Albán
Rosa del Pilar Castro-Gómez
Yelenys Alvarado Capo

Abstract

The aim of the present work was to determine the antifungal activity of saponins extracted from Chenopodium quinoa Willd. against five phytopathogenic fungi of agricultural importance. The saponin extracts were obtained by the Soxhlet method described by Amores in 2022 and the concentrations were determined by the UV-VIS spectrophotometric method. The biological activity of the aqueous extracts of saponins was tested on the fungi Fusarium sp., Rhizoctonia sp., Pythium sp., Alternaria sp., and Botrytis sp. at concentrations of 100, 87.5, 75, 50, and 37.5 % using the Potato-Dextrose-Agar culture medium poisoning method (Difco, pH 5.5) under a completely randomized design. The highest inhibitory effect was evident on the growth of Alternaria sp. with 89.5 % at 100 % concentration of saponins. The fungi Fusarium sp., Rhizoctonia sp., Pythium sp., and Botrytis sp. were not well controlled by the metabolic effect of the concentrations tested. These findings provide a new alternative for the biocontrol of this fungus, causal agent of economic losses in different crops in Ecuadorian agriculture.

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How to Cite
Castro-Albán, H. A. ., Castro-Gómez, R. del P. ., & Alvarado Capo, Y. . (2024). Antifungal activity of saponins from Chenopodium quinoa Willd. against agriculturally important plant pathogenic fungi. Revista De Protección Vegetal, 38, https://cu-id.com/2247/v38e22. Retrieved from https://revistas.censa.edu.cu/index.php/RPV/article/view/1320
Section
ORIGINAL ARTICLES

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