Abstract
Water deficit stress is one of the most frequent environmental stresses affecting the physiological and growth responses of plants, especially grapevines. However, grapevine varieties and species differ in their tolerance to water stress. To identify the most tolerant grapevine rootstock, a factorial randomised block design with two factors was used. The first factor included the susceptible cv. Sultana (V. vinifera L.) scion grafted onto three rootstocks (Yaghouti, Kolahdari and 140 Ru), and the second factor was water stress potential at three levels (control, -1 MPa and -2 MPa). The physiological parameters, such as malondialdehyde (MDA), electrical leakage (EL), proline, soluble sugar, protein, photosynthetic pigments, and antioxidant enzymes were investigated. Our results revealed that increasing water stress enhanced H2O2, MDA, EL, proline, soluble sugar, and soluble protein, while decreasing chlorophyll (Chl) and carotenoid contents, growth parameters, and plant dry weight. The glutathione peroxidase (GPX) activity was enhanced in response to water deficiency, whereas catalase (CAT) and ascorbate peroxidase (APX) enzymes exhibited higher activity at -1 MPa, which was then reduced under the lowest water potential (-2 MPa). In addition, 140 Ru rootstocks exposed to water stress had lower levels of MDA, H2O2, EL, and higher Chl (a, b), carotenoid, APX, and GPX activity, as well as higher shoot dry weight. Overall, the physiological and morphological responses of the three rootstocks propose that grafting the commercial Sultana cultivar onto drought-tolerant rootstocks such as 140 Ru is an effective strategy for improving drought stress tolerance.
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Claims 12
Claim · model-written summary
Increasing water stress enhanced H2O2, MDA and electrolyte leakage in grapevine.
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e1“Our results revealed that increasing water stress enhanced H2O2, MDA, EL, proline, soluble sugar, and soluble protein, while decreasing chlorophyll (Chl) and carotenoid contents, growth parameters, and plant dry weight”
Claim · model-written summary
Increasing water stress enhanced proline, soluble sugar and soluble protein in grapevine.
- Treatment
- increasing water stresse1
- Outcome
- proline, soluble sugar, and soluble proteine1
- Direction
- enhancede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e1“Our results revealed that increasing water stress enhanced H2O2, MDA, EL, proline, soluble sugar, and soluble protein, while decreasing chlorophyll (Chl) and carotenoid contents, growth parameters, and plant dry weight”
Claim · model-written summary
Increasing water stress decreased chlorophyll and carotenoid contents in grapevine.
- Treatment
- increasing water stresse1
- Outcome
- chlorophyll (Chl) and carotenoid contentse1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e1“Our results revealed that increasing water stress enhanced H2O2, MDA, EL, proline, soluble sugar, and soluble protein, while decreasing chlorophyll (Chl) and carotenoid contents, growth parameters, and plant dry weight”
Claim · model-written summary
Increasing water stress decreased growth parameters and plant dry weight in grapevine.
- Treatment
- increasing water stresse1
- Outcome
- growth parameters, and plant dry weighte1
- Direction
- decreasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e1“Our results revealed that increasing water stress enhanced H2O2, MDA, EL, proline, soluble sugar, and soluble protein, while decreasing chlorophyll (Chl) and carotenoid contents, growth parameters, and plant dry weight”
Claim · model-written summary
GPX activity was enhanced in response to water deficiency in grapevine.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e2“The glutathione peroxidase (GPX) activity was enhanced in response to water deficiency, whereas catalase (CAT) and ascorbate peroxidase (APX) enzymes exhibited higher activity at -1 MPa, which was then reduced under the lowest water potential (-2 MPa)”
Claim · model-written summary
CAT and APX activity was higher at -1 MPa water potential.
- Treatment
- water deficiencye2
- Gene
- catalase (CAT) and ascorbate peroxidase (APX)e2
- Outcome
- activitye2
- Direction
- highere2
- Qualifier
- at -1 MPae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e2“The glutathione peroxidase (GPX) activity was enhanced in response to water deficiency, whereas catalase (CAT) and ascorbate peroxidase (APX) enzymes exhibited higher activity at -1 MPa, which was then reduced under the lowest water potential (-2 MPa)”
Claim · model-written summary
CAT and APX activity was reduced under the lowest water potential (-2 MPa).
- Treatment
- water deficiencye2
- Gene
- catalase (CAT) and ascorbate peroxidase (APX)e2
- Outcome
- activitye2
- Direction
- reducede2
- Qualifier
- under the lowest water potential (-2 MPa)e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e2“The glutathione peroxidase (GPX) activity was enhanced in response to water deficiency, whereas catalase (CAT) and ascorbate peroxidase (APX) enzymes exhibited higher activity at -1 MPa, which was then reduced under the lowest water potential (-2 MPa)”
Claim · model-written summary
Under water stress, rootstock 140 Ru had lower MDA, H2O2 and electrolyte leakage than the other rootstocks.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e3“In addition, 140 Ru rootstocks exposed to water stress had lower levels of MDA, H2O2, EL, and higher Chl (a, b), carotenoid, APX, and GPX activity, as well as higher shoot dry weight”
Claim · model-written summary
Under water stress, rootstock 140 Ru had higher Chl (a, b) and carotenoid contents.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e3“In addition, 140 Ru rootstocks exposed to water stress had lower levels of MDA, H2O2, EL, and higher Chl (a, b), carotenoid, APX, and GPX activity, as well as higher shoot dry weight”
Claim · model-written summary
Under water stress, rootstock 140 Ru had higher APX and GPX activity.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e3“In addition, 140 Ru rootstocks exposed to water stress had lower levels of MDA, H2O2, EL, and higher Chl (a, b), carotenoid, APX, and GPX activity, as well as higher shoot dry weight”
Claim · model-written summary
Under water stress, rootstock 140 Ru had higher shoot dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e3“In addition, 140 Ru rootstocks exposed to water stress had lower levels of MDA, H2O2, EL, and higher Chl (a, b), carotenoid, APX, and GPX activity, as well as higher shoot dry weight”
Claim · model-written summary
Grafting the Sultana cultivar onto drought-tolerant rootstocks such as 140 Ru is an effective strategy for improving drought stress tolerance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“especially grapevines”
e4“Overall, the physiological and morphological responses of the three rootstocks propose that grafting the commercial Sultana cultivar onto drought-tolerant rootstocks such as 140 Ru is an effective strategy for improving drought stress tolerance”
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See all 8 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.