Chitosan Application in Vineyards (Vitis vinifera L. cv. Tinto Cão) Induces Accumulation of Anthocyanins and Other Phenolics in Berries, Mediated by Modifications in the Transcription of Secondary Metabolism Genes

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dc.contributor.authorSingh, Rupesh Kumarpt_PT
dc.contributor.authorMartins, Vivianapt_PT
dc.contributor.authorSoares, Brunopt_PT
dc.contributor.authorCastro, Isaura Alberta Oliveira dept_PT
dc.contributor.authorFalco, Virgíliopt_PT
dc.date.accessioned2020-12-09T11:15:39Z
dc.date.available2020-12-09T11:15:39Z
dc.date.issued2020
dc.description.abstractDespite the numerous beneficial properties and uses of chitosan in agriculture, the molecular mechanisms behind its elicitation potential are still unclear. This study aimed at understanding the e ect of chitosan application in the levels of phenolic compounds of Vitis vinifera L. red grapes berry skin (cv. Tinto Cão) during veraison. Grapevines were treated with chitosan (0.01% in 0.01% acetic acid) while control grapevines were sprayed with 0.01% acetic acid. Results showed that several monomeric anthocyanins increased significantly in berry skins after treatment with chitosan. Additionally, Catechin, Rutin and Querecetin-3-O-galactoside were also recorded in higher amount upon chitosan treatment. Besides modulating the phenolic content, chitosan treatment also induced modifications in several target genes encoding key enzymes and transporters involved in secondary metabolic pathways. For instance, the genes PAL, CHS, F3H, ANR, UFGT, ABCC1, GST, MATE1 were upregulated in leaves and berry skins at veraison cessation in response to chitosan treatment. Overall, the results demonstrated that chitosan has a stimulatory e ect on the accumulation of phenolic compounds, including anthocyanins, mediated by modifications in the transcription of key genes involved in their biosynthesis and transport in grape berries.pt_PT
dc.identifier.otherdoi:10.3390/ijms21010306
dc.identifier.urihttp://hdl.handle.net/10348/10310
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relation.ispartofCITAB - Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicaspt_PT
dc.rightsopen accesspt_PT
dc.subjectchitosanpt_PT
dc.subjectelicitorpt_PT
dc.subjectVitis vinifera L.pt_PT
dc.subjectanthocyaninspt_PT
dc.subjectpolyphenolspt_PT
dc.subjecttanninspt_PT
dc.subjecttransporter genespt_PT
dc.titleChitosan Application in Vineyards (Vitis vinifera L. cv. Tinto Cão) Induces Accumulation of Anthocyanins and Other Phenolics in Berries, Mediated by Modifications in the Transcription of Secondary Metabolism Genespt_PT
dc.typejournal articlept_PT
degois.publication.issue306pt_PT
degois.publication.titleInternational Journal of Molecular Sciencespt_PT
degois.publication.volume21pt_PT
dspace.entity.typePublicationen
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