The flavour of grape colour: anthocyanin content tunes aroma precursor composition by altering the berry microenvironment
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Título
The flavour of grape colour: anthocyanin content tunes aroma precursor composition by altering the berry microenvironmentAutoría
Fecha de publicación
2023-06-09Editor
Oxford University PressISSN
0022-0957Cita bibliográfica
Maite Rodríguez-Lorenzo, Nuria Mauri, Carolina Royo, José L Rambla, Gianfranco Diretto, Olivia Demurtas, Ghislaine Hilbert, Christel Renaud, Vanessa Tobar, Joaquín Huete, Serge Delrot, Antonio Granell, José Miguel Martínez-Zapater, Pablo Carbonell-Bejerano, The flavour of grape colour: anthocyanin content tunes aroma precursor composition by altering the berry microenvironment, Journal of Experimental Botany, 2023;, erad223, https://doi.org/10.1093/jxb/erad223Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://academic.oup.com/jxb/advance-article/doi/10.1093/jxb/erad223/7192818?log ...Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Anthocyaninless (white) instead of black/red (coloured) fruits develop in grapevine cultivars without functional VviMYBA1 and VviMYBA2 genes, and this conditions the colour of wines that can be produced. To evaluate ... [+]
Anthocyaninless (white) instead of black/red (coloured) fruits develop in grapevine cultivars without functional VviMYBA1 and VviMYBA2 genes, and this conditions the colour of wines that can be produced. To evaluate whether this genetic variation has additional consequences on fruit ripening and composition, we performed comparisons of microenvironment, transcriptomics, and metabolomics of developing grapes between near-isogenic white- and black-berried somatic variants of Garnacha and Tempranillo cultivars. Berry temperature was as much as 3.5 ºC lower in white- compared to black-berried Tempranillo. An RNA-seq study combined with targeted and untargeted metabolomics revealed that ripening fruits of white-berried variants were characterized by the up-regulation of photosynthesis-related and other light-responsive genes and by their higher accumulation of specific terpene aroma precursors, fatty acid-derived aldehyde volatiles, and phenylpropanoid precursor amino acids. MYBA1-MYBA2 function proved essential for flavonol trihydroxylation in black-berried somatic variants, which were also characterized by enhanced expression of pathogen defence genes in the berry skin and increased accumulation of C6-derived alcohol and ester volatiles and γ-aminobutyric acid. Collectively, our results indicate that anthocyanin depletion has side-effects on grape composition by altering the internal microenvironment of the berry and the partitioning of the phenylpropanoid pathway. Our findings show how fruit colour can condition other fruit features, such as flavour potential and stress homeostasis. [-]
Publicado en
Journal of Experimental Botany, erad223Entidad financiadora
Ministerio de Ciencia e Innovación | Agencia Estatal de Investigación | Instituto de Estudios Riojanos
Código del proyecto o subvención
BIO2014-59324-R and BIO2017-86375-R | PID2020-120183RB-I00
Derechos de acceso
© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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