Differences in metabolic and physiological responses between local and widespread grapevine cultivars underwater deficit stress
Florez-Sarasa, Igor (Centre de Recerca en Agrigenòmica)
Clemente-Moreno, Maria Jose (Universitat de les Illes Balears)
Cifre, Josep (Universitat de les Illes Balears)
Capo, Miquel (Universitat de les Illes Balears)
Llompart, Miquel (Universitat de les Illes Balears)
Fernie, Alisdair (Max-Ilanck-Institute of Molecular Plant Physiology (Germany))
Bota, Josefina (Universitat de les Illes Balears)

Date:	2020
Abstract:	Climate change forecasts suggest temperature increases and lower rainfall rates, both of which challenge viticulture, particularly in semi-arid areas where water availability is critical. In this scenario, tlx-use of tlx-genetic variability in grapevine varieties reported around the world represents an important strategy for the selection of climate-resilient cultivars. In this work, physiological and metabolomics analyses were conducted to Compare the water deficit stress (VVIJS) responses of red and white, local and widespread grapevines cultivars. Leaf gas exchange, water use efficiency (WUK) and water relation parameters were determined in plants under well-watered and WDS conditions alongside assessment of the levels of foliar primary metabolites using gas-chromatography coupled to mass-spectrometry. Results denote that red and white local cultivars displayed more adapted physiological performance under WDS as Compared to the widely-distributed ones. Multivariate analyses and specific changes in leaf primary metabolites indicate genotype-specific responses of local cultivars as Compared to widespread ones. Differences in ascorbate-related and shikimate/phenylpropanoid metabolism could explain the better physiological performance under WDS in red local as Compared to widespread cultivars. On the other hand, coordinated changes in respiratory- A nd stress-related sugars and amino acids Could underlie the better WUK under WDS in tlx-white local Cultivar. All these results suggest several metabolic targets that Could be useful as metabolic markers or for metabolic engineering in grapevine breeding programs to improve drought tolerance.
Grants:	Ministerio de Economía y Competitividad RTA2013-00068-C03-03 European Commission 753301 Ministerio de Economía y Competitividad FPDI-2013-18167
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Water deficit stress ; Vitis vinifera ; Genetic variability ; Local cultivars ; Metabolomics ; Water use efficiency
Published in:	Agronomy, Vol. 10, Issue 7 (July 2020) , art. 1052, ISSN 2073-4395

DOI: 10.3390/AGRONOMY10071052

21 p, 2.2 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
Articles > Published articles