Blueberry (Vaccinium corymbosum) is a fruit very much appreciated by consumers for its antioxidant potential and health-promoting traits. Its beneficial potential properties are mainly due to a high content of anthocyanins and their amount can change after elicitation with methyl jasmonate. The aim of this work is to evaluate the changes in expression of several genes, accumulation of phenolic compounds and alterations in antioxidant potential in two different blueberry cultivars ('Duke' and 'Blueray') in response to methyl jasmonate (0.1mM). Results showed that 9h after treatment, the expression of phenylalanine ammonium lyase, chalcone synthase and anthocyanidin synthase genes was stimulated more in the 'Blueray' variety. Among the phenols measured an increase was recorded also for epicatechin and anthocyanin concentrations. 'Duke' is a richer sourche of anthocyanins compared to 'Blueray', treatment with methyl jasmonate promoted in 'Blueray' an increase in pigments as well as in the antioxidant potential, especially in fully ripe berries, but treated 'Duke' berries had greater levels, which were not induced by methyl jasmonate treatment. In conclusion, methyl jasmonate was, in some cases, an effective elicitor of phenolic metabolism and gene expression in blueberry, though with different intensity between cultivars.

Methyl jasmonate affects phenolic metabolism and gene expression in blueberry (Vaccinium corymbosum) / G. Cocetta, M. Rossoni, C. Gardana, I. Mignani, A. Ferrante, A. Spinardi. - In: PHYSIOLOGIA PLANTARUM. - ISSN 0031-9317. - 153:2(2015 Feb), pp. 269-283. [10.1111/ppl.12243]

Methyl jasmonate affects phenolic metabolism and gene expression in blueberry (Vaccinium corymbosum)

G. Cocetta
;
M. Rossoni
Secondo
;
C. Gardana;I. Mignani;A. Ferrante
Penultimo
;
A. Spinardi
Ultimo
2015

Abstract

Blueberry (Vaccinium corymbosum) is a fruit very much appreciated by consumers for its antioxidant potential and health-promoting traits. Its beneficial potential properties are mainly due to a high content of anthocyanins and their amount can change after elicitation with methyl jasmonate. The aim of this work is to evaluate the changes in expression of several genes, accumulation of phenolic compounds and alterations in antioxidant potential in two different blueberry cultivars ('Duke' and 'Blueray') in response to methyl jasmonate (0.1mM). Results showed that 9h after treatment, the expression of phenylalanine ammonium lyase, chalcone synthase and anthocyanidin synthase genes was stimulated more in the 'Blueray' variety. Among the phenols measured an increase was recorded also for epicatechin and anthocyanin concentrations. 'Duke' is a richer sourche of anthocyanins compared to 'Blueray', treatment with methyl jasmonate promoted in 'Blueray' an increase in pigments as well as in the antioxidant potential, especially in fully ripe berries, but treated 'Duke' berries had greater levels, which were not induced by methyl jasmonate treatment. In conclusion, methyl jasmonate was, in some cases, an effective elicitor of phenolic metabolism and gene expression in blueberry, though with different intensity between cultivars.
anthocyanins; blueberry; gene expression; methyl jasmonate; phenolic compounds; sugars; Vaccinium
Settore AGR/03 - Arboricoltura Generale e Coltivazioni Arboree
19-giu-2014
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/263499
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