RT info:eu-repo/semantics/article
T1 Helichrysum stoechas (L.) Moench Inflorescence Extract for Tomato Disease Management
A1 Sánchez Hernández, Eva
A1 Álvarez Martínez, Javier
A1 González García, Vicente
A1 Casanova Gascón, José
A1 Martín Gil, Jesús
A1 Martín Ramos, Pablo
AB Helichrysum stoechas is a singular halophyte that has been shown to have anti-inflammatory, antioxidant, and allelopathic properties. In the work presented herein, we have characterized its inflorescences hydromethanolic extract and assessed its antifungal activity for the pre- and postharvest management of tomato crop diseases. Gas chromatography–mass spectrometry characterization of the extract showed that 4-ethenyl-1,3-benzenediol, 2,3-dihydro-benzofuran, quinic acid, 3,5-dihydroxy-6,7,8-trimethoxy-2-phenyl-4H-1-benzopyran-4-one, 1,6-anhydro-β-D-glucopyranose, catechol, scopoletin, and maltol were the main constituents. The co-occurrence of pyranones, benzenediols, and quinic acids as phytoconstituents of H. stoechas extract resulted in promising in vitro minimum inhibitory concentrations of 500, 375, 500, 187.5, 187.5, and 375 μg·mL−1 against mycelia of Alternaria alternata, Colletotrichum coccodes, Fusarium oxysporum f. sp. lycopersici, Rhizoctonia solani, Sclerotinia sclerotiorum, and Verticillium dahliae, respectively. Further, to assess the potential of H. stoechas inflorescence extract for postharvest tomato crop protection, ex situ tests were conducted against C. coccodes, obtaining high protection at a dose of 750 μg·mL−1. Taking into consideration that the demonstrated activity is among the highest reported to date for plant extracts and comparable to that of the synthetic fungicides tested as positive controls, H. stoechas inflorescence extract may be put forward as a promising biorational and may deserve further testing in field-scale studies
PB MDPI
SN 1420-3049
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/65457
UL https://uvadoc.uva.es/handle/10324/65457
LA spa
NO Molecules, Agosto 2023, 28, 15, 5861
NO Producción Científica
DS UVaDOC
RD 28-nov-2024