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- W1948777680 abstract "Abstract F lavescence dorée phytoplasma ( FDp ) infections seriously affect production and survival of grapevine. We analysed the changes in the flavonoid pathway occurring in two red cultivars, the highly susceptible B arbera and the less susceptible N ebbiolo, following FDp infection. A combination of metabolic and transcript analyses was used to quantify flavonoid compounds and expression of a set of genes involved in their biosynthesis. Quantification of anthocyanins, flavonols, proanthocyanidins and related biosynthetic enzymes was performed over the vegetative season, at four time points, on healthy, infected and recovered plants. A strong activation of anthocyanin accumulation was observed in infected B arbera leaves, while the response was less marked in N ebbiolo. Proanthocyanidins also accumulated mainly in infected B arbera leaves, even if basal proanthocyanidin concentration was higher in healthy and recovered N ebbiolo. Biochemical data were supported by transcript analysis: genes of the stem flavonoid pathway and of the anthocyanin and proanthocyanidin branches were expressed at a higher level in infected than in healthy plants, with a different magnitude between the two cultivars. Based on our results, we hypothesize that flavonoid accumulation is a physiological consequence of FD infection without affecting phytoplasma multiplication, although proanthocyanidin accumulation could help repel further infection by the insect vector." @default.
- W1948777680 created "2016-06-24" @default.
- W1948777680 creator A5000254058 @default.
- W1948777680 creator A5019918225 @default.
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- W1948777680 creator A5044549429 @default.
- W1948777680 creator A5071624853 @default.
- W1948777680 creator A5071659659 @default.
- W1948777680 date "2014-05-15" @default.
- W1948777680 modified "2023-10-03" @default.
- W1948777680 title "Metabolic and transcript analysis of the flavonoid pathway in diseased and recovered Nebbiolo and Barbera grapevines (<i>V</i><i>itis vinifera</i> L.) following infection by Flavescence dorée phytoplasma" @default.
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- W1948777680 doi "https://doi.org/10.1111/pce.12332" @default.
- W1948777680 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24689527" @default.
- W1948777680 hasPublicationYear "2014" @default.
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