RT info:eu-repo/semantics/article
T1 Phytochemical profiling of Sambucus nigra L. flower and leaf extracts and their antimicrobial potential against almond tree pathogens
A1 Sánchez Hernández, Eva
A1 Balduque Gil, Joaquín
A1 González García, Vicente
A1 Barriuso Vargas, Juan José
A1 Casanova Gascón, José
A1 Martín Gil, Jesús
A1 Martín Ramos, Pablo
K1 Phytochemicals
K1 Fitoquímica
K1 Antimicrobial activity
K1 Forests and forestry
K1 Bosques y silvicultura
K1 Plant extracts
K1 Almond
K1 Almendro
K1 Trees - Diseases and pests
K1 Arboles - Enfermedades y plagas
K1 Pest control
K1 Pathogenic fungi
K1 Hongos patógenos
K1 Fungi
K1 Plant science
K1 Plant biotechnology
K1 Plantas - Biotecnología
K1 Plant science
K1 3102 Ingeniería Agrícola
K1 3106 Ciencia Forestal
K1 3106.08 Silvicultura
K1 3108.05 Hongos
AB 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.
PB MDPI
SN 1422-0067
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/69559
UL https://uvadoc.uva.es/handle/10324/69559
LA eng
NO International Journal of Molecular Sciences, 2023, Vol. 24, Nº. 2, 1154
NO Producción Científica
DS UVaDOC
RD 02-dic-2024