RT info:eu-repo/semantics/article
T1 Armeria maritima (Mill.) Willd. Flower hydromethanolic extract for cucurbitaceae fungal diseases control
A1 Sánchez Hernández, Eva
A1 Martín Ramos, Pablo
A1 Navas Gracia, Luis Manuel
A1 Martín Gil, Jesús
A1 Garcés Claver, Ana
A1 Flores León, Alejandro
A1 González García, Vicente
K1 Antifungal
K1 Cucurbitaceae
K1 Plant diseases
K1 Plantas - Enfermedades y plagas
K1 Fusarium
K1 Fungi
K1 Phytopathogenic microorganisms
K1 Microorganismos fitopatógenos
K1 Halophytes
K1 Analytical chemistry
K1 Phytochemicals
K1 Química vegetal
K1 Medicinal plants
K1 Plantas medicinales
K1 Plant science
K1 3108 Fitopatología
K1 3102 Ingeniería Agrícola
K1 3108.05 Hongos
K1 2301 Química Analítica
AB The cliff rose (Armeria maritima), like other halophytes, has a phenolics-based antioxidant system that allows it to grow in saline habitats. Provided that antioxidant properties are usually accompanied by antimicrobial activity, in this study we investigated the phytochemicals present in a hydromethanolic extract of A. maritima flowers and explored its antifungal potential. The main phytocompounds, identified by gas chromatography–mass spectrometry, were: hexadecanoic acid, octadecanoic acid, 9-octadecenoic acid, 3-(3,4-dihydroxy-phenyl)-acrylic acid ethyl ester, and benzeneacetaldehyde. The antifungal activity of the extract and its main constituents—alone and in combination with chitosan oligomers—was tested against six pathogenic taxa associated with soil-borne diseases of plant hosts in the family Cucurbitaceae: Fusarium equiseti, F. oxysporum f. sp. niveum, Macrophomina phaseolina, Neocosmospora falciformis, N. keratoplastica, and Sclerotinia sclerotiorum. In in vitro tests, EC90 effective concentrations in the 166−865 μg·mL−1 range were obtained for the chitosan oligomers–A. maritima extract conjugate complexes, lower than those obtained for fosetyl-Al and azoxystrobin synthetic fungicides tested for comparison purposes, and even outperforming mancozeb against F. equiseti. In ex situ tests against S. sclerotiorum conducted on artificially inoculated cucumber slices, full protection was achieved at a dose of 250 μg·mL−1. Thus, the reported results support the valorization of A. maritima as a source of biorationals for Cucurbitaceae pathogens protection, suitable for both organic and conventional agriculture.
PB MDPI
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/69037
UL https://uvadoc.uva.es/handle/10324/69037
LA eng
NO Molecules, 2023, Vol. 28, Nº. 9, 3730
NO Producción Científica
DS UVaDOC
RD 27-jul-2024