| 000 | 02719nam a22003617a 4500 | ||
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| 003 | ZW-GwMSU | ||
| 005 | 20250219085743.0 | ||
| 008 | 250219b |||||||| |||| 00| 0 eng d | ||
| 022 | _a0176-1617 | ||
| 040 |
_aMSU _bEnglish _cMSU _erda |
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| 050 | 0 | 0 | _aQK711.2 JOU |
| 100 | 1 |
_aDinis, L.-T. _eauthor |
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| 245 | 1 | 0 |
_aKaolin exogenous application boosts antioxidant capacity and phenolic content in berries and leaves of grapevine under summer stress _ccreated by L.-T. Dinis, S. Bernardo, A. Conde, D. Pimentel , H. Ferreira, L. Félix d, H. Gerós, C.M. Correia, J. Moutinho-Pereira |
| 264 | 1 |
_aAmsterdam: _bElsevier GmbH, _c2016. |
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| 336 |
_2rdacontent _atext _btxt |
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| 337 |
_2rdamedia _aunmediated _bn |
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| 338 |
_2rdacarrier _avolume _bnc |
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| 440 |
_aJournal of plant physiology _vVolume 191 |
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| 520 | 3 | _aHeat waves, high light intensities and water deficit are becoming important threats in many important viticultural areas worldwide, so the implementation of efficient and cost-effective mitigation strategies is crucial for the production of premium wines while maintaining productivity. In this context, the foliar application of kaolin, a chemically inert mineral with excellent reflective properties, is being developed and experimented as a strategy to reduce the impact of heat and drought in Douro vineyards (Northern Portugal), already revealing promising results. In the present study we investigated if an improved antioxidant capacity is part of the beneficial effects of kaolin, by studying changes in the enzymatic and nonenzymatic antioxidant system in leaves and berries (cv Touriga Nacional). Results showed that mature grape berries contained higher amounts of total phenols (40%), flavonoids (24%), anthocyanins (32%) and vitamin C (12%) than fruits from control vines, and important changes were also measured in leaves. In parallel, kaolin application improved the antioxidant capacity in berries, which was correlated with the observed increased content in secondary metabolites. Kaolin application also regulated secondary metabolism at the transcriptional level through the increase in the transcript abundance of genes encoding phenylalanine ammonia lyase and chalcone synthase. | |
| 650 | _aVitis vinifera | ||
| 650 | _aOxidative stress | ||
| 650 | _aAntioxidants | ||
| 700 | 1 |
_aBernardo, S. _eco-author |
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| 700 | 1 |
_aConde, A. _eco-author |
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| 700 | 1 |
_aPimentel, D. _eco-author |
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| 700 | 1 |
_aFerreira, H. _eco-author |
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| 700 | 1 |
_aFélix, L. _eco-author |
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| 700 | 1 |
_aGerós, H. _eco-author |
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| 700 | 1 |
_aCorreia, C.M. _eco-author |
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| 700 | 1 |
_aMoutinho-Pereira, J. _eco-author |
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| 856 | _uhttps://doi.org/10.1016/j.jplph.2015.12.005 | ||
| 942 |
_2lcc _cJA |
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| 999 |
_c168994 _d168994 |
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