Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/69559
Título
Phytochemical profiling of Sambucus nigra L. flower and leaf extracts and their antimicrobial potential against almond tree pathogens
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
International Journal of Molecular Sciences, 2023, Vol. 24, Nº. 2, 1154
Abstract
Despite extensive research on the chemical composition of elderberries and their numerous uses in pharmaceutical, beverage, and food production, there is still a lack of knowledge about Sambucus nigra leaves and flowers’ antimicrobial activity against plant pathogens. In this study, the phytoconstituents of their aqueous ammonia extracts were first characterized by infrared spectroscopy and gas chromatography–mass spectrometry. The major phytocompounds identified in the flower extract were octyl 2-methylpropanoate; 3,5-dihydroxy-6-methyl-2,3-dihydropyran-4-one; propyl malonic acid; adenine; and 1-methyl-2-piperidinemethanol. Concerning the leaf extract, 1,6-anhydro-β-D-glucopyranose; oleic acid; 2,1,3-benzothiadiazole; 2,3-dihydro-benzofuran; and 4-((1E)-3-hydroxy-1-propenyl)-2-methoxyphenol and other phenol derivatives were the main constituents. The potential of the extracts to act as bioprotectants was then investigated against three almond tree pathogens: Diaporthe amygdali, Phytophthora megasperma, and Verticillium dahliae. In vitro tests showed higher activity of the flower extract, with EC90 values in the 241–984 μg·mL−1 range (depending on the pathogen) vs. 354–1322 μg·mL−1 for the leaf extract. In addition, the flower extract led to full protection against P. megasperma at a dose of 1875 μg·mL−1 in ex situ tests on artificially-infected excised almond stems. These inhibitory concentrations were lower than those of commercial fungicides. These findings suggest that S. nigra aerial organs may be susceptible to valorization as an alternative to synthetic fungicides for the protection of this important crop.
Materias (normalizadas)
Phytochemicals
Fitoquímica
Antimicrobial activity
Forests and forestry
Bosques y silvicultura
Plant extracts
Almond
Almendro
Trees - Diseases and pests
Arboles - Enfermedades y plagas
Pest control
Pathogenic fungi
Hongos patógenos
Fungi
Plant science
Plant biotechnology
Plantas - Biotecnología
Plant science
Materias Unesco
3102 Ingeniería Agrícola
3106 Ciencia Forestal
3106.08 Silvicultura
3108.05 Hongos
ISSN
1422-0067
Revisión por pares
SI
Patrocinador
Junta de Castilla y León y Fondo Europeo de Desarrollo Regional (FEDER) - (project VA258P18)
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
Aparece en las colecciones
Files in questo item
![Atribución 4.0 Internacional](/themes/Mirage2//images/creativecommons/cc-by.png)