000088170 001__ 88170
000088170 005__ 20200225105134.0
000088170 0247_ $$2doi$$a10.3390/agriengineering2010005
000088170 0248_ $$2sideral$$a116248
000088170 037__ $$aART-2020-116248
000088170 041__ $$aeng
000088170 100__ $$aMatei, Petruta Mihaela
000088170 245__ $$aIn vitro antifungal activity of chitosan-polyphenol conjugates against Phytophthora cinnamomi
000088170 260__ $$c2020
000088170 5060_ $$aAccess copy available to the general public$$fUnrestricted
000088170 5203_ $$aPhytophthora cinnamomi is responsible for radical rot in a wide range of hosts, resulting in large economic and ecological losses worldwide. In Spain, it is responsible for diseases such as the oak decline or the chestnut blight. In this study, different polyphenol-stevioside inclusion compounds dispersed in a hydroalcoholic solution of chitosan oligomers have been investigated, with a view to their application as natural bioactive complexes to replace conventional systemic fungicides against this fungus. The polyphenols tested in vitro were curcumin, ferulic acid, gallic acid and silymarin. Three concentrations (125, 250 and 500 µg·mL-1) were assayed, with and without silver nanoparticles (AgNPs), and notable differences were found in the inhibition of mycelium growth, with EC50 and EC90 values ranging from 171 to 373.6 µg·mL-1, and from 446.2 to 963.7 µg·mL-1, respectively. The results obtained showed that the addition of AgNPs, despite their antimicrobial activity, did not always lead to synergies. In the case of P. cinnamomi, an unexpected antagonistic behavior was found for two of the polyphenols (curcumin and silymarin), while an additive behavior for ferulic acid and a synergistic behavior for gallic acid were attained. In view of their inhibitory power, the preparations based on ferulic acid with AgNPs and on silymarin without AgNPs are proposed for applications in crop and forests protection against P. cinnamomi.
000088170 536__ $$9info:eu-repo/grantAgreement/ES/UZ/UZ2019-TEC-07
000088170 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000088170 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000088170 700__ $$aBuzón Durán, Laura
000088170 700__ $$aPérez Lebeña, Eduardo
000088170 700__ $$aMartín Gil, Jesús
000088170 700__ $$aIacomi, Beatrice Michaela
000088170 700__ $$aRamos Sánchez, M. Carmen
000088170 700__ $$0(orcid)0000-0003-2713-2786$$aMartín Ramos, Pablo$$uUniversidad de Zaragoza
000088170 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000088170 773__ $$g2, 1 (2020), 72-77$$pAgriEngineering$$tAgriEngineering$$x2624-7402
000088170 8564_ $$s425279$$uhttps://zaguan.unizar.es/record/88170/files/texto_completo.pdf$$yVersión publicada
000088170 8564_ $$s468179$$uhttps://zaguan.unizar.es/record/88170/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000088170 909CO $$ooai:zaguan.unizar.es:88170$$particulos$$pdriver
000088170 951__ $$a2020-02-25-10:25:59
000088170 980__ $$aARTICLE