Abstract
Abstract Background Grafting is one of the promising techniques for improving abiotic stress tolerance in horticultural crops, but the underlying regulatory mechanisms of drought on grafted grapevine are largely unexplored. Results Herein, we investigated the phenotypic, physiologic, biochemical, and drought related genes change of self-rooted 1103P (1103 Paulsen), SM (Shine Muscat) and grafted SM/1103P (SM shoot/1103P root) under drought stress condition. The results indicated that grafted grapevine effectively alleviated drought damage in grape leaves by higher RWC, water potential and free water content. Drought stress led to the alterations of chlorophyll, carotenoid, photosynthetic parameters and chlorophyll fluorescence in grapevine leaves after drought treatment indicated grafted plants improved the photosystem response to drought stress. Moreover, grafted plants under drought stress exhibited higher levels of abscisic acid (ABA), indoleacetic acid (IAA) and soluble protein, but less contents of hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA) both in leaves and roots. Drought stress also increased the activities of antioxidant enzymes (SOD, POD and CAT) and activated the transcript expression of VvCu/ZnSOD , VvPOD4 and VvCAT1 ) in both leaves and roots. Further expression analysis by real-time PCR indicated that the expression levels of ABA-dependent and ABA-independent related genes could be activated in grafted grape after drought treatment. Conclusions Taken together, our findings demonstrated that grafting onto 1103P enhanced tolerance against drought stress in grape by improving water content, photosynthesis and antioxidant defense capacity, which provided a valuable information for understanding the mechanisms of drought tolerance regulated by grafting plants.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 10
Claim · model-written summary
Grafted grapevine alleviated drought damage in leaves.
- Material
- grafted SM/1103Pe1
- Treatment
- grafted SM/1103Pe1
- Outcome
- drought damage in grape leavese0
- Direction
- alleviatede0
- Comparator
- SM (Shine Muscat)e1
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grafted grapevine effectively alleviated drought damage in grape leaves”
e1“self-rooted 1103P (1103 Paulsen), SM (Shine Muscat) and grafted SM/1103P (SM shoot/1103P root) under drought stress condition”
Claim · model-written summary
Grafted grapevine had higher leaf relative water content, water potential and free water content under drought.
- Material
- grafted SM/1103Pe2
- Organ / stage
- grape leavese1
- Treatment
- grafted SM/1103Pe2
- Outcome
- RWC, water potential and free water contente0
- Direction
- highere0
- Comparator
- SM (Shine Muscat)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher RWC, water potential and free water content”
e1“grafted grapevine effectively alleviated drought damage in grape leaves”
e2“self-rooted 1103P (1103 Paulsen), SM (Shine Muscat) and grafted SM/1103P (SM shoot/1103P root) under drought stress condition”
Claim · model-written summary
Drought altered chlorophyll, carotenoids and photosynthetic parameters in grapevine leaves.
- Organ / stage
- grapevine leavese0
- Treatment
- Drought stresse0
- Outcome
- chlorophyll, carotenoid, photosynthetic parameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress led to the alterations of chlorophyll, carotenoid, photosynthetic parameters and chlorophyll fluorescence in grapevine leaves after drought treatment”
Claim · model-written summary
Drought altered chlorophyll fluorescence in grapevine leaves, with grafted plants showing an improved photosystem response.
- Organ / stage
- grapevine leavese0
- Treatment
- drought treatmente0
- Outcome
- photosystem response to drought stresse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll fluorescence in grapevine leaves after drought treatment indicated grafted plants improved the photosystem response to drought stress”
Claim · model-written summary
Grafted plants under drought had higher abscisic acid, indoleacetic acid and soluble protein levels.
- Treatment
- grafted SM/1103Pe1
- Outcome
- abscisic acid (ABA), indoleacetic acid (IAA) and soluble proteine0
- Direction
- highere0
- Comparator
- SM (Shine Muscat)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grafted plants under drought stress exhibited higher levels of abscisic acid (ABA), indoleacetic acid (IAA) and soluble protein”
t0“grafted grapevine”
e1“self-rooted 1103P (1103 Paulsen), SM (Shine Muscat) and grafted SM/1103P (SM shoot/1103P root) under drought stress condition”
Claim · model-written summary
Grafted plants under drought had lower hydrogen peroxide and malondialdehyde in leaves and roots.
- Organ / stage
- leaves and rootse0
- Treatment
- grafted SM/1103Pe2
- Outcome
- hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA)e0
- Direction
- lesse0
- Comparator
- SM (Shine Muscat)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but less contents of hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA) both in leaves and roots”
e1“grafted plants under drought stress exhibited higher levels”
t0“grafted grapevine”
e2“self-rooted 1103P (1103 Paulsen), SM (Shine Muscat) and grafted SM/1103P (SM shoot/1103P root) under drought stress condition”
Claim · model-written summary
Drought increased SOD, POD and CAT antioxidant enzyme activities in leaves and roots.
- Organ / stage
- leaves and rootse1
- Treatment
- Drought stresse0
- Outcome
- activities of antioxidant enzymes (SOD, POD and CAT)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress also increased the activities of antioxidant enzymes (SOD, POD and CAT)”
e1“in both leaves and roots”
t0“grapevine”
Claim · model-written summary
Drought activated expression of VvCu/ZnSOD, VvPOD4 and VvCAT1 in leaves and roots.
- Organ / stage
- leaves and rootse0
- Treatment
- Drought stresse1
- Gene
- VvCu/ZnSOD , VvPOD4 and VvCAT1e0
- Outcome
- transcript expression of VvCu/ZnSOD , VvPOD4 and VvCAT1e0
- Direction
- activatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activated the transcript expression of VvCu/ZnSOD , VvPOD4 and VvCAT1 ) in both leaves and roots”
e1“Drought stress also increased”
t0“grapevine”
Claim · model-written summary
Drought activated ABA dependent and independent gene expression in grafted grape.
- Taxon
- grapee0
- Treatment
- drought treatmente0
- Outcome
- expression levels of ABA-dependent and ABA-independent related genese0
- Direction
- activatede0
Not reportedComparator
Verbatim
e0“expression levels of ABA-dependent and ABA-independent related genes could be activated in grafted grape after drought treatment”
Claim · model-written summary
Grafting onto 1103P enhanced grape drought tolerance through water content, photosynthesis and antioxidant defense.
Verbatim
e0“grafting onto 1103P enhanced tolerance against drought stress in grape by improving water content, photosynthesis and antioxidant defense capacity”
The same questions in other papers
grafting · physiology: water · VitisPositive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →drought · physiology: antioxidant enzymes · VitisPositive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
4 papers more in this group
See all 8 papers →drought · molecular: expression · VitisPositive and negative results
11 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- no effect
14 papers more in this group
See all 18 papers →grafting · physiology: osmolytes · VitisResults agree
1 paper in the same direction as this paper
- positive
grafting · pest · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
grafting · physiology: oxidative · VitisResults agree
3 papers in the same direction as this paper
- positive
- 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.