Abstract
Discovering, analyzing, and finding a key to understanding the physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress is of fundamental importance for this profitable crop. Today’s considerable climatic fluctuations force researchers and farmers to focus on this issue with solutions inclined to respect the ecosystem. In this academic work, we focused on describing the drought stress consequences on several parameters of secondary metabolites on Vitis vinifera leaves (quercetins, kaempferol, resveratrol, proline, and xanthophylls) and on some ecophysiological characteristics (e.g., water potential, stomatal conductance, and leaf temperature) to compare the answers that diverse agronomic management techniques (i.e., irrigation with and without zeolite, pure zeolite and no application) could instaurate in the metabolic pathway of this important crop with the aim to find convincing and thought-provoking responses to use this captivating and versatile mineral, the zeolite known as the “magic rock”. Stressed grapevines reached 56.80 mmol/m2s gs at veraison and a more negative stem Ψ (+10.63%) compared to plants with zeolite. Resveratrol, in the hottest season, fluctuated from 0.18–0.19 mg/g in zeolite treatments to 0.37 mg/g in stressed vines. Quercetins were inclined to accumulate in response to drought stress too. In fact, we recorded a peak of quercetin (3-O-glucoside + 3-O-glucuronide) of 11.20 mg/g at veraison in stressed plants. It is interesting to note how the pool of metabolites was often unchanged for plants treated with zeolite and for plants treated with water only, thus elevating this mineral to a “stress reliever”.
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Claims 6
Claim · model-written summary
Stressed grapevines reached a stomatal conductance of 56.80 mmol/m2s at veraison.
- Taxon
- Vitis vinifera L.
Vitis viniferae0 - Organ / stage
- veraisone1
- Treatment
- drought stresse0
- Outcome
- gse1
- Value
- 56.80 mmol/m2se1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e1“Stressed grapevines reached 56.80 mmol/m2s gs at veraison”
Claim · model-written summary
Stressed grapevines had a more negative stem water potential than vines with zeolite, by +10.63%.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Treatment
- drought stresse0
- Outcome
- stem Ψe2
- Direction
- more negativee2
- Value
- +10.63%e2
- Comparator
- plants with zeolitee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e2“a more negative stem Ψ (+10.63%) compared to plants with zeolite”
Claim · model-written summary
Resveratrol was higher in stressed vines (0.37 mg/g) than in zeolite treatments (0.18–0.19 mg/g) in the hottest season.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Treatment
- drought stresse0
- Outcome
- Resveratrole3
- Direction
- increaseinferrede3
- Value
- 0.37 mg/ge3
- Comparator
- zeolite treatmentse3
- Setting
- hottest seasone3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e3“Resveratrol, in the hottest season, fluctuated from 0.18–0.19 mg/g in zeolite treatments to 0.37 mg/g in stressed vines”
Claim · model-written summary
Quercetins tended to accumulate in response to drought stress.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Treatment
- drought stresse4
- Outcome
- Quercetinse4
- Direction
- accumulatee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e4“Quercetins were inclined to accumulate in response to drought stress”
Claim · model-written summary
Stressed plants reached a quercetin peak of 11.20 mg/g at veraison.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Organ / stage
- veraisone5
- Treatment
- stressed plantse5
- Outcome
- peak of quercetin (3-O-glucoside + 3-O-glucuronide)e5
- Value
- 11.20 mg/ge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e5“we recorded a peak of quercetin (3-O-glucoside + 3-O-glucuronide) of 11.20 mg/g at veraison in stressed plants”
Claim · model-written summary
The metabolite pool was often unchanged in zeolite-treated vines compared with water-only vines.
- Taxon
- Vitis vinifera L.Vitis viniferae0
- Treatment
- zeolitee6
- Outcome
- pool of metabolitese6
- Direction
- unchangede6
- Comparator
- plants treated with water onlye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“physiological and biochemical responses that Vitis vinifera L. undertakes against drought stress”
e6“the pool of metabolites was often unchanged for plants treated with zeolite and for plants treated with water only”
The same questions in other papers
other · molecular: metabolites · Vitis vinifera (wine grape)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →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.