000108557 001__ 108557 000108557 005__ 20230519145410.0 000108557 0247_ $$2doi$$a10.3390/plants10091876 000108557 0248_ $$2sideral$$a125092 000108557 037__ $$aART-2021-125092 000108557 041__ $$aeng 000108557 100__ $$aSánchez-Hernández, E. 000108557 245__ $$aPhysicochemical characterization and antimicrobial activity against Erwinia amylovora, Erwinia vitivora, and Diplodia seriata of a light purple Hibiscus syriacus L. Cultivar 000108557 260__ $$c2021 000108557 5060_ $$aAccess copy available to the general public$$fUnrestricted 000108557 5203_ $$aPhytochemicals are essential raw materials for the production of formulations that can be helpful in crop protection. In particular, Hibiscus spp., which are often used in traditional medicine, are rich in potential bioactive molecules. This study presents an analysis of the thermal, vibrational, and phytochemical characteristics of a light purple variety of Hibiscus syriacus, using thermal gravimetric and differential scanning calorimetry, Fourier-transform infrared spectroscopy, and gas chromatography-mass spectroscopy techniques. Further, with a view to its valorization, the antimicrobial activity of its extracts has been investigated in vitro against Erwinia amylovora (the phytopathogen responsible for fire blight in apples, pears, and some other members of the family Rosaceae), Erwinia vitivora (the causal agent of the “maladie d’Oléron” in grapevines), and Diplodia seriata (responsible for “Bot canker”). Higher heating values and thermal features showed similarities with kenaf biomass. The main compounds identified in the hydro-methanolic extracts were: in flowers, 1-heptacosanol, heptacosane, 1-tetracosanol, hexadecenoic acid, 9,12,15-octadecatrienoic acid, and 9,12-octadecadienoic acid; and in leaves, the coumarin derivative 4,4,6,8-tetramethyl-2-chromanone, vitamin E, phytol, and sitosterol. MIC values of 500 and 375 μg·mL−1 were obtained against E. amylovora for flower and leaf extracts, respectively, upon conjugation with chitosan oligomers (to improve solubility and bioavailability). In the case of E. vitivora, MIC values of 250 and 500 μg·mL−1, respectively, were registered. Regarding the antifungal activity, EC90 values of 975.8 and 603.5 μg·mL−1, respectively, were found. These findings suggest that H. syriacus (cv. ‘Mathilde’) may be a promising source of antimicrobials for agriculture. 000108557 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000108557 590__ $$a4.658$$b2021 000108557 592__ $$a0.765$$b2021 000108557 594__ $$a3.6$$b2021 000108557 591__ $$aPLANT SCIENCES$$b39 / 240 = 0.162$$c2021$$dQ1$$eT1 000108557 593__ $$aPlant Science$$c2021$$dQ1 000108557 593__ $$aEcology, Evolution, Behavior and Systematics$$c2021$$dQ1 000108557 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000108557 700__ $$aBuzón-Durán, L. 000108557 700__ $$aLorenzo-Vidal, B. 000108557 700__ $$aMartín-Gil, J. 000108557 700__ $$0(orcid)0000-0003-2713-2786$$aMartín Ramos, P$$uUniversidad de Zaragoza 000108557 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal 000108557 773__ $$g10, 9 (2021), 1876 [16 pp.]$$tPlants$$x2223-7747 000108557 8564_ $$s11634323$$uhttps://zaguan.unizar.es/record/108557/files/texto_completo.pdf$$yVersión publicada 000108557 8564_ $$s2777233$$uhttps://zaguan.unizar.es/record/108557/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000108557 909CO $$ooai:zaguan.unizar.es:108557$$particulos$$pdriver 000108557 951__ $$a2023-05-18-13:54:19 000108557 980__ $$aARTICLE