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Journal of Experimental Botany

Gregory A. Gambetta - EGFV, Bordeaux-Sciences Agro, INRA, Université de Bordeaux, ISVV, 210 chemin de Leysotte, 33882 Villenave d’Ornon, France. 
Jose Carlos Herrera - Institute of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
Silvina Dayer - EGFV, Bordeaux-Sciences Agro, INRA, Université de Bordeaux, ISVV, 210 chemin de Leysotte, 33882 Villenave d’Ornon, France.
Quishuo Feng - Wine Research Centre, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada.
Simone D. Castellarin - Wine Research Centre, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada.

Water availability is arguably the most important environmental factor limiting crop growth and productivity. Erratic precipitation patterns and increased temperatures resulting from climate change will likely make drought events more frequent in many regions, increasing the demand on freshwater resources and creating major challenges for agriculture. Addressing these challenges through increased irrigation is not always a sustainable solution so there is a growing need to identify and/or breed drought-tolerant crop varieties in order to maintain sustainability in the context of climate change. Grapevine (Vitis vinifera), a major fruit crop of economic importance, has emerged as a model perennial fruit crop for the study of drought tolerance. This review synthesizes the most recent results on grapevine drought responses, the impact of water deficit on fruit yield and composition, and the identification of drought-tolerant varieties. Given the existing gaps in our knowledge of the mechanisms underlying grapevine drought responses, we aim to answer the following question: how can we move towards a more integrative definition of grapevine drought tolerance?

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The physiology of drought stress in grapevine: towards an integrative definition of drought tolerance

Gregory A. Gambetta - EGFV, Bordeaux-Sciences Agro, INRA, Université de Bordeaux, ISVV, 210 chemin de Leysotte, 33882 Villenave d’Ornon, France. 
Jose Carlos Herrera - Institute of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
Silvina Dayer - EGFV, Bordeaux-Sciences Agro, INRA, Université de Bordeaux, ISVV, 210 chemin de Leysotte, 33882 Villenave d’Ornon, France.
Quishuo Feng - Wine Research Centre, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada.
Simone D. Castellarin - Wine Research Centre, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada.

The physiology of drought stress in grapevine: towards an integrative definition of drought tolerance

Water availability is arguably the most important environmental factor limiting crop growth and productivity. Erratic precipitation patterns and increased temperatures resulting from climate change will likely make drought events more frequent in many regions, increasing the demand on freshwater resources and creating major challenges for agriculture. Addressing these challenges through increased irrigation is not always a sustainable solution so there is a growing need to identify and/or breed drought-tolerant crop varieties in order to maintain sustainability in the context of climate change. Grapevine (Vitis vinifera), a major fruit crop of economic importance, has emerged as a model perennial fruit crop for the study of drought tolerance. This review synthesizes the most recent results on grapevine drought responses, the impact of water deficit on fruit yield and composition, and the identification of drought-tolerant varieties. Given the existing gaps in our knowledge of the mechanisms underlying grapevine drought responses, we aim to answer the following question: how can we move towards a more integrative definition of grapevine drought tolerance?

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