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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/69449

    Título
    A coating based on bioactive compounds from Streptomyces spp. and chitosan oligomers to control Botrytis cinerea preserves the quality and Improves the shelf life of table grapes
    Autor
    Buzon Duran, LauraAutoridad UVA Orcid
    Sánchez Hernández, EvaAutoridad UVA Orcid
    Sánchez Báscones, MercedesAutoridad UVA Orcid
    García González, María CruzAutoridad UVA Orcid
    Hernández Navarro, SalvadorAutoridad UVA Orcid
    Correa Guimaraes, AdrianaAutoridad UVA
    Martín Ramos, PabloAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    Plants, 2023, Vol. 12, Nº. 3, 577
    Resumen
    Botrytis cinerea is the most harmful postharvest disease of table grapes. Among the strategies that can be envisaged for its control, the use of coatings based on natural products is particularly promising. The study presented herein focuses on the assessment of the antagonistic capacity of two Streptomyces species and their culture filtrates against B. cinerea. Firstly, the secondary metabolites were characterized by gas chromatography–mass spectrometry, with N1-(4-hydroxybutyl)-N3-methylguanidine acetate and 2R,3S-9-[1,3,4-trihydroxy-2-butoxymethyl]guanine acetate as the main compounds produced by S. lavendofoliae DSM 40217; and cyclo(leucyloprolyl) and cyclo(phenylalanylprolyl) as the most abundant chemical species for S. rochei DSM 41729. Subsequently, the capacity of S. lavendofoliae DSM 40217 and S. rochei DSM 41729 to inhibit the growth of the pathogen was tested in dual culture plate assays, finding 85–90% inhibition. In agar dilution tests, their culture filtrates resulted in effective concentration values (EC90) in the 246–3013 μg·mL−1 range. Upon the formation of conjugate complexes with chitosan oligomers (COS) to improve solubility and bioavailability, a synergistic behavior was observed, resulting in lower EC90 values, ranging from 201 to 953 μg·mL−1. Ex situ tests carried out on ‘Timpson’ and ‘Red Globe’ table grapes using the conjugate complexes as coatings were found to maintain the turgor of the grapes and delay the appearance of the pathogen by 10−15 days at concentrations in the 750−1000 µg·mL−1 range. Hence, the conjugate complexes of COS and the selected Streptomyces spp. culture filtrates may be put forward as promising protection treatments for the sustainable control of gray mold.
    Materias (normalizadas)
    Botrytis cinerea
    Fungi
    Plant diseases
    Plantas - Enfermedades y plagas
    Fruit - Postharvest diseases and injuries
    Frutas - Enfermedades y plagas
    Phytopathologie
    Synergism
    Antifungal
    Fungicides
    Table grapes
    Uvas - Variedades
    Uvas - Enfermedades y plagas
    Grapes - Diseases and pests
    Ecology
    Plant science
    Materias Unesco
    2414.06 Hongos
    3108.01 Bacterias
    3108 Fitopatología
    3101.05 Fungicidas
    2417.13 Ecología Vegetal
    3309 Tecnología de Los Alimentos
    ISSN
    2223-7747
    Revisión por pares
    SI
    DOI
    10.3390/plants12030577
    Version del Editor
    https://www.mdpi.com/2223-7747/12/3/577
    Propietario de los Derechos
    © 2023 The authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/69449
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Aparece en las colecciones
    • DEP08 - Artículos de revista [82]
    • DEP42 - Artículos de revista [291]
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    Nombre:
    A-Coating-Based-on-Bioactive-Compounds.pdf
    Tamaño:
    1.291Mb
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    Atribución 4.0 InternacionalLa licencia del ítem se describe como Atribución 4.0 Internacional

    Universidad de Valladolid

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