Cultivar specific metabolic changes in grapevines berry skins in relation to deficit irrigation and hydraulic behavior

Hochberg, Uri; Degu, Asfaw; Cramer, Grant R.; Rachmilevitch, Shimon; Fait, Aaron

doi:10.1016/j.plaphy.2015.01.006

Cited by 61 publications

(89 citation statements)

References 56 publications

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“…Recent studies in grapevine showed that hydraulic conductivity of leaves (K leaf ) and of stem (K stem ) contributes to variation among varieties regarding their response to soil water deficit and the recovery response to drought (Schultz and Stoll, 2010;Coupel-Ledru et al, 2014;Hochberg et al, 2015;Martorell et al, 2015). The observed intra-specific variation in K leaf can reflect differences in leaf morpho-anatomy (Nardini et al, 2012) and in water pathways through the outside xylem to the water evaporation sites.…”

Section: Morpho-hydraulics and Water Transportmentioning

confidence: 99%

Modern viticulture in southern Europe: Vulnerabilities and strategies for adaptation to water scarcity

Costa

Vaz

Escalona

et al. 2016

Agricultural Water Management

153

112

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b s t r a c tWater is now considered the most important but vulnerable resource in the Mediterranean region. Nevertheless, irrigation expanded fast in the region (e.g. South Portugal and Spain) to mitigate environmental stress and to guarantee stable grape yield and quality. Sustainable wine production depends on sustainable water use in the wine's supply chain, from the vine to the bottle. Better understanding of grapevine stress physiology (e.g. water relations, temperature regulation, water use efficiency), more robust crop monitoring/phenotyping and implementation of best water management practices will help to mitigate climate effects and will enable significant water savings in the vineyard and winery. In this paper, we focused on the major vulnerabilities and opportunities of South European Mediterranean viticulture (e.g. in Portugal and Spain) and present a multi-level strategy (from plant to the consumer) to overcome region's weaknesses and support strategies for adaptation to water scarcity, promote sustainable water use and minimize the environmental impact of the sector. © 2015 Published by Elsevier B.V. The wine grape industry in south Mediterranean EuropeWorld's wine production are located in a wide geographical Q2and climatic range, often in mid-latitude regions characterized by climate variability and stressful environments, such as the Mediterranean region (Fraga et al., 2013;Lionello et al., 2014). The European Union , is the world's leader in wine production with about 50% of world's vine-growing area and about 60% of total volume of production (USDA, 2014). France, Italy, Spain, Germany and Portugal are the five leading EU wine producers and altogether they represent 90% of EU production (USDA, 2014). Spain has the largest vineyard area in the world (950,541 ha in 2014) with an increasing irrigated area (36% of the total, in 2014) (MAGRAMA, 2014) (Fig. 1). Portugal is the EU's 5th largest wine producer with a total of 6.7 Mhl in 2013 and it has a cultivated area estimated to be about 224,000 ha (IVV, 2015). In 2010, the irrigated area was estimated in 15% of the total area of vineyards (INE, 2010). However, irrigation continued expanding in the recent years in Portugal, in particular in the Alentejo region, and presently, the percentage of irrigated vines should be slightly higher and around 20%. * Corresponding author.E-mail address: miguelc@itqb.unl.pt (J.M. Costa).Mediterranean fresh water resources are under high pressure due to fast-growing population, increased water scarcity, extreme climate variability and intensive water use in agriculture, industry and tourism activities (Lange et al., 2005;Costa et al., 2007; EEA, 2012a,b; Lereboullet et al., 2013a,b;Blum, 2014). Water is now considered by EU experts as the most important but vulnerable resource in the Mediterranean region (EU-ERANETMED, 2014). In addition, climate scenarios for South Mediterranean Europe are not favourable for agriculture. The predicted lower precipitation, higher air and soil temperatures, more frequent and l...

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Section: Morpho-hydraulics and Water Transportmentioning

confidence: 99%

Modern viticulture in southern Europe: Vulnerabilities and strategies for adaptation to water scarcity

Costa

Vaz

Escalona

et al. 2016

Agricultural Water Management

153

112

View full text Add to dashboard Cite

show abstract

“…Although the most accurate way of monitoring DI is by measuring relevant physiological variables (Cifre et al, 2005), acquiring these preliminary indicators of stress might also entail intrusive equipment and proficient manpower. Furthermore, as spatial variability (Bramley, 2005;Trought and Bramley, 2011) and genotype-based hydraulic differences (Hochberg et al, 2015) within a vineyard may also require numerous samplings, physiology tools become also time-and cost-inefficient (Hall et al, 2002). Therefore, a faster, simpler, cheaper and non-destructive alternative is necessary to advance DI regulation in grapevine (Cifre et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Combining leaf physiology, hyperspectral imaging and partial least squares-regression (PLS-R) for grapevine water status assessment

Rapaport

Hochberg

Shoshany

et al. 2015

ISPRS Journal of Photogrammetry and Remote Sensing

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131

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“…This may be due to conversion of the total aminoacids into the most convenient form of amino acid such as proline or any other compatible solute. Hochberg et al, (2015) observed a similar response in grapevines subjected to water deficits; a decrease in aminoacids with corresponding increase of metabolites such as proline, beta alanine, ascorbate. A corresponding increase in proline content of N 22 suggests that the amino acids are depleted to facilitate an increase in proline.…”

Section: Amino Acidsmentioning

confidence: 58%

“…A disturbance in the amino acid concentrations is generally observed under stress conditions (Hochberg et al, 2015). After 6hrs of stress period, the amino acid concentration in TH was almost same as its control, but doubled its amino acid levels within 24hrs and during recovery its amino acid levels dropped back to normal as in the control.…”

Section: Amino Acidsmentioning

confidence: 92%

Effect of PEG mediated water stress on solute accumulation, relative water content, biomass and antioxidant enzymes in rice

Kundur

Reddy

Rao

2016

IJARe

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In rice, several cultivated and upland varieties need to be assessed and analyzed for drought tolerance traits which could be used in screening and breeding programs for drought tolerance. Hence, the objectives of this study were to investigate the effects of water deficits in two rice cultivars and thereby analyze the role of several physiological traits useful in rice breeding programs for drought tolerance. The rice varieties Tellahamsa (TH) and N 22 were screened for tolerance to drought. A comparative study was done subjecting them to PEG mediated water stress. Accumulation of solutes, i.e., proline, total free aminoacids and sugars; biomass production, Relative Water Content (RWC) and the levels of antioxidant enzymes, viz., Catalase (CAT), Ascorbate Peroxidase (APX), Glutathione Reductase(GR), and Superoxide Dismutase(SOD) were analyzed in response to water stress. Maximum proline accumulation was seen within 24hrs of stress, after 10 days TH decreased its proline to one-third, whereas in N 22 doubled. Although amino acids doubled within 24hrs, gradually they depleted in N 22 . This may be due to conversion of aminoacids into proline which could be the most compatible solute. Sugars increased within 24hrs, but were depleted in 10days in both. In TH, the shoot and root biomass decreased, whereas in N 22 there was a significant increase in root biomass. Shoot and root RWC of N 22 was higher than TH under stress. GR increased in both TH and N 22, APX and SOD increased only in N 22. Proline accumulation, increase of root biomass and antioxidant enzymes such as APX or SOD during water stress are contributing to drought tolerance and could be used in screening for drought tolerance.

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Cultivar specific metabolic changes in grapevines berry skins in relation to deficit irrigation and hydraulic behavior

Cited by 61 publications

References 56 publications

Modern viticulture in southern Europe: Vulnerabilities and strategies for adaptation to water scarcity

Modern viticulture in southern Europe: Vulnerabilities and strategies for adaptation to water scarcity

Combining leaf physiology, hyperspectral imaging and partial least squares-regression (PLS-R) for grapevine water status assessment

Effect of PEG mediated water stress on solute accumulation, relative water content, biomass and antioxidant enzymes in rice

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