Abstract
Plants are exposed to numerous abiotic stresses. Drought is probably the most important of them and determines crop distribution around the world. Grapevine is considered to be a drought-resilient species, traditionally covering semiarid areas. Moreover, in the case of grapevine, moderate water deficit is known to improve the quality traits of grape berries and subsequently wine composition. However, against the backdrop of climate change, vines are expected to experience sustained water deficits which could be detrimental to both grape quality and yield. The influence of water deficit on two Greek Vitis vinifera L. cultivars, ‘Agiorgitiko’ and ‘Assyrtiko’, was investigated during the 2019 and 2020 vintages. Vine physiology measurements in irrigated and non-irrigated plants were performed at three time-points throughout berry development (green berry, veraison and harvest). Berry growth and composition were examined during ripening. According to the results, water deficit resulted in reduced berry size and increased levels of soluble sugars, total phenols and anthocyanins. The expression profile of specific genes, known to control grape color, aroma and flavor was altered by water availability during maturation in a cultivar-specific manner. In agreement with the increased concentration of phenolic compounds due to water deficit, genes of the phenylpropanoid pathway in the red-skinned Agiorgitiko exhibited higher expression levels and earlier up-regulation than in the white Assyrtiko. The expression profile of the other genes during maturation or in response to water deficit was depended on the vintage.
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Claims 6
Claim · model-written summary
Water deficit reduced berry size.
- Taxon
- Vitis vinifera L.
Vitis viniferat0 - Treatment
- water deficite0
- Outcome
- berry sizee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit resulted in reduced berry size”
t0“Vitis vinifera L.”
Claim · model-written summary
Water deficit increased soluble sugar, total phenol and anthocyanin levels.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- water deficite0
- Outcome
- levels of soluble sugars, total phenols and anthocyaninse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit resulted in reduced berry size and increased levels of soluble sugars, total phenols and anthocyanins”
t0“Vitis vinifera L.”
Claim · model-written summary
Water availability altered color, aroma and flavor gene expression during maturation in a cultivar-specific manner.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- water availabilitye0
- Outcome
- expression profile of specific genes, known to control grape color, aroma and flavore0
- Qualifier
- cultivar-specific mannere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression profile of specific genes, known to control grape color, aroma and flavor was altered by water availability during maturation in a cultivar-specific manner”
t0“Vitis vinifera L.”
Claim · model-written summary
Phenylpropanoid pathway genes had higher expression in Agiorgitiko than Assyrtiko.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Material
- Agiorgitikoe0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- Assyrtikoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes of the phenylpropanoid pathway in the red-skinned Agiorgitiko exhibited higher expression levels and earlier up-regulation than in the white Assyrtiko”
t0“Vitis vinifera L.”
Claim · model-written summary
Phenylpropanoid pathway genes were upregulated earlier in Agiorgitiko than Assyrtiko.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Material
- Agiorgitikoe0
- Outcome
- up-regulatione0
- Direction
- earliere0
- Comparator
- Assyrtikoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genes of the phenylpropanoid pathway in the red-skinned Agiorgitiko exhibited higher expression levels and earlier up-regulation than in the white Assyrtiko”
t0“Vitis vinifera L.”
Claim · model-written summary
Other gene expression profiles during maturation or water deficit depended on vintage.
- Taxon
- Vitis vinifera L.Vitis viniferat0
- Treatment
- water deficite0
- Outcome
- expression profile of the other genese0
- Qualifier
- vintagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expression profile of the other genes during maturation or in response to water deficit was depended on the vintage”
t0“Vitis vinifera L.”
The same questions in other papers
drought · yield · Vitis vinifera (wine grape)Results differ
15 papers in the same direction as this paper · 3 in the opposite direction
- negative
- positive
- positive
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See all 19 papers →drought · physiology: osmolytes · Vitis vinifera (wine grape)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.