Fruit - localized photoreceptors increase phenolic compounds in berry skins of field-grown Vitis vinifera L. cv. Malbec

Sunlight exposure has multiple effect on fruits, as it affects the light climate perceived by fruit photoreceptors and fruit tissue temperature. In grapes [Vitis vinifera L.], light exposure can have a strong effect on fruit quality and commercial value; however, the mechanisms of light action are n...

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Detalles Bibliográficos
Otros Autores: González, Carina Verónica, Fanzone, Martín, Cortés, Leandro Emanuel, Bottini, Rubén, Lijavetzky, Diego Claudio, Ballaré, Carlos Luis, Boccalandro, Hernán Esteban
Formato: Artículo
Lenguaje:Español
Materias:
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2015gonzalez2.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
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024 |a 10.1016/j.phytochem.2014.11.018 
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245 1 0 |a Fruit - localized photoreceptors increase phenolic compounds in berry skins of field-grown Vitis vinifera L. cv. Malbec 
520 |a Sunlight exposure has multiple effect on fruits, as it affects the light climate perceived by fruit photoreceptors and fruit tissue temperature. In grapes [Vitis vinifera L.], light exposure can have a strong effect on fruit quality and commercial value; however, the mechanisms of light action are not well understood. The role of fruit-localized photoreceptors in the control of berry quality traits was evaluated under field conditions in a commercial vineyard in Mendoza [Argentina]. Characterization of the diurnal dynamics of the fruit light environment in a vertical trellis system indicated that clusters were shaded by leaves during most of the photoperiod. Supplementation of the fruit light environment from 20 days before veraison until technological harvest showed that red [R, 660 nm] and blue [B, 470 nm] light strongly increased total phenolic compound levels at harvest in the berry skins without affecting sugar content, acidity or berry size. Far-red [FR, 730 nm] and green [G, 560 nm] light supplementation had relatively small effects. The stimulation of berry phytochromes and cryptochromes favored accumulation of flavonoid and non-flavonoid compounds, including anthocyanins, flavonols, flavanols, phenolic acids and stilbenes. These results demonstrate that the chemical composition of grape berries is modulated by the light quality received by the clusters under field conditions, and that fruit photoreceptors are not saturated even in areas of high insolation and under management systems that are considered to result in a relatively high exposure of fruits to solar radiation. Therefore, manipulation of the light environment or the light sensitivity of fruits could have significant effects on critical grape quality traits. 
650 |2 Agrovoc  |9 26 
653 0 |a VITIS VINIFERA L. 
653 0 |a VITIS VINIFERA 
653 0 |a VITIS 
653 0 |a VITACEAE 
653 0 |a STILBENES 
653 0 |a STILBENE DERIVATIVE 
653 0 |a SENSORY RECEPTOR CELLS 
653 0 |a SENSORY NERVE CELL 
653 0 |a RESVERATROL 
653 0 |a POLYPHENOLS 
653 0 |a POLYPHENOL 
653 0 |a PLANT LEAVES 
653 0 |a PLANT LEAF 
653 0 |a PHYTONUTRIENTS 
653 0 |a PHYTOCHROMES 
653 0 |a PHOTOPERIODICITY 
653 0 |a PHOTOPERIOD 
653 0 |a PHENOLS 
653 0 |a PHENOL DERIVATIVE 
653 0 |a MOLECULAR STRUCTURE 
653 0 |a GRAPEVINE 
653 0 |a FRUIT 
653 0 |a FLAVONOLS 
653 0 |a FLAVONOL DERIVATIVE 
653 0 |a FLAVONOIDS 
653 0 |a FLAVONOID 
653 0 |a CRYPTOCHROMES 
653 0 |a CHEMISTRY 
653 0 |a CHEMICAL STRUCTURE 
653 0 |a BERRY PIGMENTATION 
653 0 |a ARGENTINA 
653 0 |a ANTHOCYANINS 
653 0 |a ANTHOCYANIN 
700 1 |9 68220  |a González, Carina Verónica 
700 1 |a Fanzone, Martín  |9 49970 
700 1 |a Cortés, Leandro Emanuel  |9 67600 
700 1 |a Bottini, Rubén  |9 49409 
700 1 |a Lijavetzky, Diego Claudio  |9 28782 
700 1 |9 672  |a Ballaré, Carlos Luis 
700 1 |9 67603  |a Boccalandro, Hernán Esteban 
773 |t Phytochemistry  |g vol.110 (2015), p.46-57 
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856 |u https://www.elsevier.com/  |x MIGRADOS2018  |z LINK AL EDITOR 
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