MYB24 orchestrates terpene and flavonol metabolism as light responses to anthocyanin depletion in variegated grape berries

dc.catalogadorgjm
dc.contributor.authorZhang, Chen
dc.contributor.authorDai, Zhanwu
dc.contributor.authorFerrier, Thilia
dc.contributor.authorOrduna, Luis
dc.contributor.authorSantiago, Antonio
dc.contributor.authorPeris, Arnau
dc.contributor.authorWong, Darren C. J.
dc.contributor.authorKappel, Christian
dc.contributor.authorSavoi, Stefania
dc.contributor.authorLoyola Muñoz, Rodrigo Esteban
dc.contributor.authorAmato, Alessandra
dc.contributor.authorKozak, Bartosz
dc.contributor.authorLi, Miaomiao
dc.contributor.authorLiang, Akun
dc.contributor.authorCarrasco, David
dc.contributor.authorMeyer Regueiro, Carlos José
dc.contributor.authorEspinoza, Carmen
dc.contributor.authorHilbert, Ghislaine
dc.contributor.authorFigueroa-Balderas, Rosa
dc.contributor.authorCantu, Dario
dc.contributor.authorArroyo-Garcia, Rosa
dc.contributor.authorArce-Johnson, Patricio
dc.contributor.authorClaudel, Patricia
dc.contributor.authorErrandonea, Daniel
dc.contributor.authorRodriguez-Concepcion, Manuel
dc.contributor.authorDuchene, Eric
dc.contributor.authorHuang, Shao-Shan Carol
dc.contributor.authorCastellarin, Simone Diego
dc.contributor.authorTornielli, Giovanni Battista
dc.contributor.authorBarrieu, Francois
dc.contributor.authorMatus, Jose Tomas
dc.date.accessioned2024-06-11T20:36:24Z
dc.date.available2024-06-11T20:36:24Z
dc.date.issued2023
dc.description.abstractVariegation is a rare type of mosaicism not fully studied in plants, especially fruits. We examined red and white sections of grape (Vitis vinifera cv. 'Bequignol') variegated berries and found that accumulation of products from branches of the phenylpropanoid and isoprenoid pathways showed an opposite tendency. Light-responsive flavonol and monoterpene levels increased in anthocyanin-depleted areas in correlation with increasing MYB24 expression. Cistrome analysis suggested that MYB24 binds to the promoters of 22 terpene synthase (TPS) genes, as well as 32 photosynthesis/light-related genes, including carotenoid pathway members, the flavonol regulator HY5 HOMOLOGUE (HYH), and other radiation response genes. Indeed, TPS35, TPS09, the carotenoid isomerase gene CRTISO2, and HYH were activated in the presence of MYB24 and MYC2. We suggest that MYB24 modulates ultraviolet and high-intensity visible light stress responses that include terpene and flavonol synthesis and potentially affects carotenoids. The MYB24 regulatory network is developmentally triggered after the onset of berry ripening, while the absence of anthocyanin sunscreens accelerates its activation, likely in a dose-dependent manner due to increased radiation exposure. Anthocyanins and flavonols in variegated berry skins act as effective sunscreens but for different wavelength ranges. The expression patterns of stress marker genes in red and white sections of 'Bequignol' berries strongly suggest that MYB24 promotes light stress amelioration but only partly succeeds during late ripening., MYB24 controls metabolic responses in skin sections of variegated grape berries lacking anthocyanin to cope with high-intensity and UV light stress, promoting terpene and flavonol accumulation.
dc.fechaingreso.objetodigital2024-09-02
dc.fuente.origenORCID
dc.identifier.doi10.1093/plcell/koad228
dc.identifier.eissn1532-298X
dc.identifier.issn1040-4651
dc.identifier.urihttps://doi.org/10.1093/plcell/koad228
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/86735
dc.identifier.wosidWOS:001062563600001
dc.information.autorucFacultad de Ciencias Biológicas; Loyola Muñoz, Rodrigo Esteban; 0000-0001-5638-0610; 142333
dc.information.autorucFacultad de Ciencias Biológicas; Meyer Regueiro, Carlos José; S/I; 187017
dc.issue.numero12
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final4265
dc.pagina.inicio4238
dc.revistaThe Plant Cell
dc.rightsacceso restringido
dc.titleMYB24 orchestrates terpene and flavonol metabolism as light responses to anthocyanin depletion in variegated grape berries
dc.typeartículo
dc.volumen35
sipa.codpersvinculados142333
sipa.codpersvinculados187017
sipa.trazabilidadORCID;2024-06-10
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
MYB24 orchestrates terpene and flavonol metabolism as light responses to anthocyanin depletion in variegated grape berries.pdf
Size:
3.06 KB
Format:
Adobe Portable Document Format
Description: