Combined effect of virus infection and water stress on water flow and water economy in grapevines

Water limitation is one of the major threats affecting grapevine production. Thus, improving water‐use efficiency (WUE) is crucial for a sustainable viticulture industry in Mediterranean regions. Under field conditions, water stress (WS) is often combined with viral infections as those are present i...

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Bibliographic Details
Published in:Physiologia plantarum 2017-06, Vol.160 (2), p.171-184
Main Authors: El Aou‐ouad, Hanan, Pou, Alicia, Tomás, Magdalena, Montero, Rafael, Ribas‐Carbo, Miquel, Medrano, Hipólito, Bota, Josefina
Format: Article
Language:English
Subjects:
Closteroviridae - pathogenicity
Conductance
Cultivars
Dehydration
Grapevines
Infections
Photosynthesis - physiology
Plant Leaves - metabolism
Plant Leaves - virology
Plant viruses
Plant Viruses - pathogenicity
Plants (botany)
Resistance
Stomata
Viral infections
Viruses
Viticulture
Vitis - metabolism
Vitis - virology
Water - metabolism
Water flow
Water stress
Water use
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Summary:Water limitation is one of the major threats affecting grapevine production. Thus, improving water‐use efficiency (WUE) is crucial for a sustainable viticulture industry in Mediterranean regions. Under field conditions, water stress (WS) is often combined with viral infections as those are present in major grape‐growing areas worldwide. Grapevine leafroll‐associated virus 3 (GLRaV‐3) is one of the most important viruses affecting grapevines. Indeed, the optimization of water use in a real context of virus infection is an important topic that needs to be understood. In this work, we have focused our attention on determining the interaction of biotic and abiotic stresses on WUE and hydraulic conductance (Kh) parameters in two white grapevine cultivars (Malvasia de Banyalbufar and Giró Ros). Under well‐watered (WW) conditions, virus infection provokes a strong reduction (P 
ISSN:0031-9317
1399-3054
DOI:10.1111/ppl.12541