000101585 001__ 101585
000101585 005__ 20230519145439.0
000101585 0247_ $$2doi$$a10.3390/agronomy11020324
000101585 0248_ $$2sideral$$a123842
000101585 037__ $$aART-2021-123842
000101585 041__ $$aeng
000101585 100__ $$aBuzón-Durán, Laura
000101585 245__ $$aOn the applicability of chitosan oligomers-amino acid conjugate complexes as eco-friendly fungicides against grapevine trunk pathogens
000101585 260__ $$c2021
000101585 5060_ $$aAccess copy available to the general public$$fUnrestricted
000101585 5203_ $$aIn a context in which the incidence and severity of grapevine fungal diseases is increasing as a result of both climate change and modern management culture practices, reducing the excessive use of phytosanitary products in viticulture represents a major challenge. Specifically, grapevine trunk diseases (GTDs), caused by several complexes of wood decay or xylem-inhabiting fungi, pose a major challenge to vineyard sustainability. In this study, the efficacy of chitosan oligomers (COS)-amino acid conjugate complexes against three fungal species belonging to the Botryosphaeriaceae family (Neofusicoccum parvum, Diplodia seriata, and Botryosphaeria dothidea) was investigated both in vitro and in planta. In vitro tests led to EC50 and EC90 effective concentrations in the 254.6-448.5 and 672.1-1498.5 mu g.mL(-1) range, respectively, depending on the amino acid involved in the conjugate complex (viz. cysteine, glycine, proline or tyrosine) and on the pathogen assayed. A synergistic effect between COS and the amino acids was observed against D. seriata and B. dothidea (synergy factors of up to 2.5 and 2.8, respectively, according to Wadley''s method). The formulations based on COS and on the conjugate complex that showed the best inhibition rates, COS-tyrosine, were further investigated in a greenhouse trial on grafted vines of two varieties ("Tempranillo" on 775P and "Garnacha" on 110R rootstock), artificially inoculated with the mentioned three Botryosphaeriaceae species. The in planta bioassay revealed that the chosen formulations induced a significant decrease in disease severity against N. parvum and B. dothidea. In summary, the reported conjugate complexes may be promising enough to be worthy of additional examination in larger field trials.
000101585 536__ $$9info:eu-repo/grantAgreement/ES/UZ/UZ2019-TEC-07
000101585 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000101585 590__ $$a3.949$$b2021
000101585 592__ $$a0.654$$b2021
000101585 594__ $$a3.9$$b2021
000101585 591__ $$aPLANT SCIENCES$$b55 / 240 = 0.229$$c2021$$dQ1$$eT1
000101585 593__ $$aAgronomy and Crop Science$$c2021$$dQ1
000101585 591__ $$aAGRONOMY$$b18 / 90 = 0.2$$c2021$$dQ1$$eT1
000101585 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000101585 700__ $$aLanga-Lomba, Natalia
000101585 700__ $$0(orcid)0000-0002-2535-6914$$aGonzález-García, Vicente
000101585 700__ $$0(orcid)0000-0003-3009-0935$$aCasanova-Gascón, José$$uUniversidad de Zaragoza
000101585 700__ $$aMartín-Gil, Jesús
000101585 700__ $$aPérez-Lebeña, Eduardo
000101585 700__ $$0(orcid)0000-0003-2713-2786$$aMartín-Ramos, Pablo$$uUniversidad de Zaragoza
000101585 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000101585 7102_ $$15011$$2705$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Producción Vegetal
000101585 773__ $$g11, 2 (2021), 324 [14 pp]$$pAgronomy$$tAgronomy$$x2073-4395
000101585 8564_ $$s8161430$$uhttps://zaguan.unizar.es/record/101585/files/texto_completo.pdf$$yVersión publicada
000101585 8564_ $$s2811762$$uhttps://zaguan.unizar.es/record/101585/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000101585 909CO $$ooai:zaguan.unizar.es:101585$$particulos$$pdriver
000101585 951__ $$a2023-05-18-14:28:25
000101585 980__ $$aARTICLE