000120948 001__ 120948
000120948 005__ 20240319081012.0
000120948 0247_ $$2doi$$a10.3390/plants11243415
000120948 0248_ $$2sideral$$a131062
000120948 037__ $$aART-2022-131062
000120948 041__ $$aeng
000120948 100__ $$0(orcid)0000-0001-5136-8639$$aSánchez-Hernández, Eva$$uUniversidad de Zaragoza
000120948 245__ $$aValorization of Quercus suber L. Bark as a source of phytochemicals with antimicrobial activity against apple tree diseases
000120948 260__ $$c2022
000120948 5060_ $$aAccess copy available to the general public$$fUnrestricted
000120948 5203_ $$aCork, an anatomic adaptation of the bark of Quercus suber L. through its suberization process, finds its main application in the production of bottle stoppers. Its processing results in a large waste stream of cork fragments, granulates, and dust, which may be susceptible to valorization. The work presented here explored the use of its extracts to inhibit the growth of phytopathogenic microorganisms associated with apple tree diseases. The in vitro antimicrobial activity of cork aqueous ammonia extract was assayed against four fungi, viz. Monilinia fructigena and M. laxa (brown rot), Neofussicoccum parvum (dieback), and Phytophthora cactorum (collar and root rot), and two bacteria, viz. Erwinia amylovora and Pseudomonas syringae pv. syringae, either alone or in combination with chitosan oligomers (COS). Effective concentration values of EC90 in the 675–3450 μg·mL−1 range, depending on the fungal pathogen, were obtained in growth inhibition tests, which were substantially improved for the conjugate complexes (340–801 μg·mL−1) as a result of strong synergism with COS. Similar enhanced behavior was also observed in antibacterial activity assays, with MIC values of 375 and 750 μg·mL−1 for the conjugate complexes against P. syringae pv. syringae and E. amylovora, respectively. This in vitro inhibitory activity was substantially higher than those exhibited by azoxystrobin and fosetyl-Al, which were tested for comparison purposes, and stood out among those reported for other natural compounds in the literature. The observed antimicrobial activity may be mainly attributed to the presence of glycerin and vanillic acid, identified by gas chromatography–mass spectroscopy. In the first step towards in-field application, the COS–Q. suber bark extract conjugate complex was further tested ex situ against P. cactorum on artificially inoculated excised stems of the ‘Garnem’ almond rootstock, achieving high protection at a dose of 3750 μg·mL−1. These results suggest that cork industrial leftovers may, thus, be a promising source of bioactive compounds for integrated pest management.
000120948 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000120948 590__ $$a4.5$$b2022
000120948 592__ $$a0.79$$b2022
000120948 591__ $$aPLANT SCIENCES$$b43 / 239 = 0.18$$c2022$$dQ1$$eT1
000120948 593__ $$aEcology$$c2022$$dQ1
000120948 593__ $$aPlant Science$$c2022$$dQ1
000120948 593__ $$aEcology, Evolution, Behavior and Systematics$$c2022$$dQ1
000120948 594__ $$a5.4$$b2022
000120948 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000120948 700__ $$0(orcid)0000-0002-2535-6914$$aGonzález-García, Vicente$$uUniversidad de Zaragoza
000120948 700__ $$0(orcid)0000-0003-3009-0935$$aCasanova-Gascón, José$$uUniversidad de Zaragoza
000120948 700__ $$0(orcid)0000-0003-2980-5454$$aBarriuso-Vargas, Juan J.$$uUniversidad de Zaragoza
000120948 700__ $$aBalduque-Gil, Joaquín$$uUniversidad de Zaragoza
000120948 700__ $$aLorenzo-Vidal, Belén
000120948 700__ $$aMartín-Gil, Jesús
000120948 700__ $$0(orcid)0000-0003-2713-2786$$aMartín-Ramos, Pablo$$uUniversidad de Zaragoza
000120948 7102_ $$14012$$2650$$aUniversidad de Zaragoza$$bDpto. Direcc.Organiza.Empresas$$cÁrea Organización de Empresas
000120948 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000120948 7102_ $$15011$$2X$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cProy. investigación JFA
000120948 7102_ $$15011$$2705$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Producción Vegetal
000120948 7102_ $$15011$$2063$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Botánica
000120948 773__ $$g11, 24 (2022), 3415 [18 pp.]$$tPlants$$x2223-7747
000120948 8564_ $$s2114292$$uhttps://zaguan.unizar.es/record/120948/files/texto_completo.pdf$$yVersión publicada
000120948 8564_ $$s2720795$$uhttps://zaguan.unizar.es/record/120948/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000120948 909CO $$ooai:zaguan.unizar.es:120948$$particulos$$pdriver
000120948 951__ $$a2024-03-18-15:16:49
000120948 980__ $$aARTICLE