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dc.contributor.authorSamkumar, Amos
dc.contributor.authorJones, Dan
dc.contributor.authorKarppinen, Katja
dc.contributor.authorDare, Andrew P.
dc.contributor.authorSipari, Nina
dc.contributor.authorEspley, Richard V.
dc.contributor.authorMartinussen, Inger
dc.contributor.authorJaakola, Laura
dc.date.accessioned2021-11-16T13:51:06Z
dc.date.available2021-11-16T13:51:06Z
dc.date.issued2021-08-01
dc.description.abstractThe biosynthesis of anthocyanins has been shown to be influenced by light quality. However, the molecular mechanisms underlying the light-mediated regulation of fruit anthocyanin biosynthesis are not well understood. In this study, we analysed the effects of supplemental red and blue light on the anthocyanin biosynthesis in non-climacteric bilberry (<i>Vaccinium myrtillus</i> L.). After 6 days of continuous irradiation during ripening, both red and blue light elevated concentration of anthocyanins, up to 12- and 4-folds, respectively, compared to the control. Transcriptomic analysis of ripening berries showed that both light treatments up-regulated all the major anthocyanin structural genes, the key regulatory <i>MYB</i> transcription factors and abscisic acid (ABA) biosynthetic genes. However, higher induction of specific genes of anthocyanin and delphinidin biosynthesis alongside ABA signal perception and metabolism were found in red light. The difference in red and blue light signalling was found in 9-<i>cis</i>-epoxycarotenoid dioxygenase (<i>NCED</i>), ABA receptor pyrabactin resistance-like (<i>PYL</i>) and catabolic <i>ABA-8'hydroxylase</i> gene expression. Red light also up-regulated expression of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) domain transporters, which may indicate involvement of these proteins in vesicular trafficking of anthocyanins during fruit ripening. Our results suggest differential signal transduction and transport mechanisms between red and blue light in ABA-regulated anthocyanin and delphinidin biosynthesis during bilberry fruit ripening.en_US
dc.identifier.citationSamkumar AS, Jones, Karppinen, Dare, Sipari, Espley, Martinussen, Jaakola. Red and blue light treatments of ripening bilberry fruits reveal differences in signalling through abscisic acid-regulated anthocyanin biosynthesis. Plant, Cell and Environment. 2021:1-19en_US
dc.identifier.cristinIDFRIDAID 1928199
dc.identifier.doi10.1111/pce.14158
dc.identifier.issn0140-7791
dc.identifier.issn1365-3040
dc.identifier.urihttps://hdl.handle.net/10037/23018
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.ispartofSamkumar, A. (2021). Effect of light quality on the biosynthesis of flavonoids and sugars in bilberry (Vaccinium myrtillus L.). (Doctoral thesis). <a href=https://hdl.handle.net/10037/23030>https://hdl.handle.net/10037/23030</a>.
dc.relation.journalPlant, Cell and Environment
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Agriculture disciplines: 910::Agricultural technology: 916en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Landbruksfag: 910::Landbruksteknologi: 916en_US
dc.titleRed and blue light treatments of ripening bilberry fruits reveal differences in signalling through abscisic acid-regulated anthocyanin biosynthesisen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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