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oai:uvadoc.uva.es:10324/694352025-02-06T11:03:04Zcom_10324_1166com_10324_931com_10324_894col_10324_1338

Sánchez Hernández, Eva González García, Vicente Martín Gil, Jesús Lorenzo Vidal, Belén Palacio Bielsa, Ana Martín Ramos, Pablo 2024-08-23T11:38:49Z 2024-08-23T11:38:49Z 2023 Horticulturae, 2023, Vol. 9, Nº. 2, 201 2311-7524 https://uvadoc.uva.es/handle/10324/69435 10.3390/horticulturae9020201 201 2 Horticulturae 9 2311-7524 Producción Científica The yew tree (Taxus baccata L.) is considered in folklore a symbol of immortality due to its qualities of longevity and regeneration. Despite its poisonous reputation, the yew tree has a long history of medicinal use, particularly in the form of extracts from its leaves and bark. In the work presented herein, gas chromatography–mass spectrometry (GC–MS) chemical profiling was applied to the aqueous ammonia/hydromethanolic extracts of several plant organs of T. baccata, leading to the identification of different bioactive compounds than those previously characterized by high-performance liquid chromatography with tandem mass spectrometry (HPLC–MS/MS) in other extraction media. The leaf aqueous ammonia extract was rich in 2-hexylthiophene and 3-O-methyl-d-fructose; 9-octadecenoic and hexadecanoic acid were the main constituents of the bark aqueous ammonia extract; and the fruit hydromethanolic extract contained methyl 2-O-methyl-α-d-xylofuranoside, 1,3-dioxolane derivatives, and erysimoside. The antimicrobial activity of the extracts was assayed against four bacterial pathogens responsible for the soft rot and blackleg diseases of potatoes, viz. Pectobacterium carotovorum subsp. carotovorum, Pectobacterium atrosepticum, Pectobacterium parmentieri, and Dickeya chrysanthemi, resulting in minimum inhibitory concentration (MIC) values as low as 187 μg·mL−1. Bioassays on potato slices confirmed the efficacy of the leaf extract at this dose when applied as a preventive treatment before artificial inoculation with P. carotovorum subsp. carotovorum. In view of this high activity, these extracts may find application in the integrated pest management of soft rot Pectobacteriaceae (SRP) diseases. application/pdf eng MDPI info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2023 The authors Atribución 4.0 Internacional Bioactive compounds Compuestos bioactivos Phytochemicals Fitoquímica Antibacterial activity Plant diseases Plantas - Enfermedades y plagas Phytopathologie Mass spectrometry Espectrometría de masas Pest control Control de plagas Potatoes Patata Horticulture Trees Arboles Tejo Forests and forestry Bosques y silvicultura Plant science 3102 Ingeniería Agrícola 3107 Horticultura 2417.09 Fitopatología 3106 Ciencia Forestal 3106.08 Silvicultura Phytochemical screening and antibacterial activity of Taxus baccata L. against Pectobacterium spp. and Dickeya chrysanthemi info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.mdpi.com/2311-7524/9/2/201 SI