Abstract
Drought stress is one of the major environmental constraints limiting grapevine growth, physiological performance, and productivity in many viticultural regions. Rootstocks play a crucial role in improving drought tolerance; however, their physiological and molecular responses to water deficit remain insufficiently understood. In the present study, six grapevine rootstocks (SO4, 3309 M, Kangzhen 3, 5BB, Beida, and 101–14) were evaluated under control, drought, and drought combined with methyl jasmonate (MeJA) treatments to investigate their morpho-physiological, biochemical, and molecular responses to water deficit. Drought stress significantly reduced vegetative growth parameters, including plant height, stem diameter, internode number, leaf number, and biomass accumulation, and decreased photosynthetic efficiency and relative water content. In contrast, drought conditions increased oxidative stress markers, including hydrogen peroxide and malondialdehyde, and led to the accumulation of osmolytes, including proline, soluble sugars, and soluble proteins. Antioxidant enzyme activities, including superoxide dismutase, catalase, Glutathione Peroxidase, and ascorbate peroxidase, were also enhanced as part of the plant defense response. Foliar application of MeJA (100 μM) effectively alleviated drought-induced damage by improving plant growth, strengthening osmotic adjustment, nutrient retention, and enhancing antioxidant defense systems. Moreover, MeJA significantly upregulated the expression of drought-responsive genes ( VvNAC8, VvNAC17 , and VvNIP1.1 ) and jasmonate signaling genes ( VvJAZ, VvJMT , and VvMYC2 ), indicating activation of molecular pathways associated with stress tolerance. Correlation analysis, cluster heatmap, and principal component analysis revealed strong relationships among growth traits, physiological parameters, biochemical responses, nutrient status, and gene expression patterns, highlighting coordinated mechanisms of drought adaptation. Overall, the results indicate clear differences in drought tolerance among the evaluated rootstocks, with SO4 and 3309 M showing higher tolerance, Kangzhen and 5BB exhibiting moderate tolerance, and Beida and 101–14 being relatively sensitive to drought stress. These findings provide valuable insights for selecting drought-resilient rootstocks and for applying MeJA as a potential strategy to improve grapevine performance under water-limited conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 16
Claim · model-written summary
Drought reduced grapevine height, stem diameter and internode number.
- Treatment
- Drought stresse0
- Outcome
- plant height, stem diameter, internode numbere0
- Direction
- reducede0
- Comparator
- controle1
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress significantly reduced vegetative growth parameters, including plant height, stem diameter, internode number”
t0“grapevine rootstocks”
e1“under control, drought, and drought combined with methyl jasmonate (MeJA) treatments”
Claim · model-written summary
Drought reduced leaf number and biomass accumulation.
- Treatment
- Drought stresse1
- Outcome
- leaf number, and biomass accumulatione0
- Direction
- decreasede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf number, and biomass accumulation, and decreased photosynthetic efficiency and relative water content”
t0“grapevine rootstocks”
e1“Drought stress significantly reduced vegetative growth parameters”
e2“under control, drought, and drought combined with methyl jasmonate (MeJA) treatments”
Claim · model-written summary
Drought decreased photosynthetic efficiency and relative water content.
- Treatment
- Drought stresse1
- Outcome
- photosynthetic efficiency and relative water contente0
- Direction
- decreasede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased photosynthetic efficiency and relative water content”
t0“grapevine rootstocks”
e1“Drought stress significantly reduced vegetative growth parameters”
e2“under control, drought, and drought combined with methyl jasmonate (MeJA) treatments”
Claim · model-written summary
Drought increased hydrogen peroxide and malondialdehyde.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought conditions increased oxidative stress markers, including hydrogen peroxide and malondialdehyde”
t0“grapevine rootstocks”
Claim · model-written summary
Drought caused accumulation of proline, soluble sugars and soluble proteins.
- Treatment
- drought conditionse1
- Outcome
- proline, soluble sugars, and soluble proteinse0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“led to the accumulation of osmolytes, including proline, soluble sugars, and soluble proteins”
t0“grapevine rootstocks”
e1“drought conditions increased oxidative stress markers”
Claim · model-written summary
Drought enhanced four antioxidant enzyme activities.
- Treatment
- drought conditionse1
- Outcome
- superoxide dismutase, catalase, Glutathione Peroxidasee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Antioxidant enzyme activities, including superoxide dismutase, catalase, Glutathione Peroxidase, and ascorbate peroxidase, were also enhanced”
t0“grapevine rootstocks”
e1“drought conditions increased oxidative stress markers”
Claim · model-written summary
Drought enhanced ascorbate peroxidase activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ascorbate peroxidase, were also enhanced”
t0“grapevine rootstocks”
e1“drought conditions increased oxidative stress markers”
Claim · model-written summary
Foliar methyl jasmonate improved growth under drought.
- Treatment
- Foliar application of MeJA (100 μM)e0
- Outcome
- plant growthe0
- Direction
- improvinge0
- Comparator
- drought-induced damagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of MeJA (100 μM) effectively alleviated drought-induced damage by improving plant growth”
t0“grapevine rootstocks”
Claim · model-written summary
Methyl jasmonate strengthened osmotic adjustment and nutrient retention under drought.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strengthening osmotic adjustment, nutrient retention, and enhancing antioxidant defense systems”
t0“grapevine rootstocks”
e1“Foliar application of MeJA (100 μM)”
Claim · model-written summary
Methyl jasmonate enhanced antioxidant defense systems under drought.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing antioxidant defense systems”
t0“grapevine rootstocks”
e1“Foliar application of MeJA (100 μM)”
Claim · model-written summary
Methyl jasmonate upregulated three drought responsive genes.
- Treatment
- MeJAe0
- Gene
- VvNAC8, VvNAC17 , and VvNIP1.1e0
- Outcome
- expression of drought-responsive genese0
- Direction
- upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly upregulated the expression of drought-responsive genes ( VvNAC8, VvNAC17 , and VvNIP1.1 )”
t0“grapevine rootstocks”
Claim · model-written summary
Methyl jasmonate upregulated three jasmonate signaling genes.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“jasmonate signaling genes ( VvJAZ, VvJMT , and VvMYC2 )”
t0“grapevine rootstocks”
e1“MeJA significantly upregulated the expression of drought-responsive genes”
Claim · model-written summary
Growth, physiological, biochemical, nutrient and gene expression traits showed strong relationships.
- Outcome
- strong relationshipse0
- Qualifier
- growth traits, physiological parameters, biochemical responses, nutrient status, and gene expression patternse0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“revealed strong relationships among growth traits, physiological parameters, biochemical responses, nutrient status, and gene expression patterns”
t0“grapevine rootstocks”
Claim · model-written summary
SO4 and 3309 M showed higher drought tolerance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SO4 and 3309 M showing higher tolerance”
t0“grapevine rootstocks”
Claim · model-written summary
Kangzhen and 5BB showed moderate drought tolerance.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kangzhen and 5BB exhibiting moderate tolerance”
t0“grapevine rootstocks”
Claim · model-written summary
Beida and 101–14 were relatively drought sensitive.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Beida and 101–14 being relatively sensitive to drought stress”
t0“grapevine rootstocks”
The same questions in other papers
(-)-methyl jasmonate · growth · VitisPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
(-)-methyl jasmonate · disease · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
(-)-methyl jasmonate · molecular: expression · VitisResults agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →drought · physiology: oxidative · VitisResults differ
8 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →drought · growth · VitisResults differ
25 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
28 papers more in this group
See all 32 papers →drought · physiology: photosynthesis · VitisResults differ
28 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
- positive
32 papers more in this group
See all 36 papers →application · growth · VitisPositive and negative results
36 papers in the same direction as this paper · 9 in the opposite direction
- negative
- no effect
- negative
42 papers more in this group
See all 46 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.