Abstract
Grapevine rootstocks that can absorb brackish water and maintain satisfactory growth of the grapevine scion might be a feasible management practice in areas suffering scarce water resources. The objective of this study was to evaluate the expression of antioxidant genes in ‘Superior Seedless’ leaves grafted on R110 (Vitis berlandieri x V. rupestris), 41B (V. berlandieri x V. vinifera) and P1103 (V. berlandieri x V. rupestris) in response to diluted brack- ish water irrigation at three levels: 1.5, 3.0 and 5.0 dS m-1 in addition to the 0.8 dS m-1 control. Results revealed that after salinity exposure for two weeks, the transcript levels of APX, Mn-SOD and MDAR increased in ‘Superior Seedless’ leaves grafted on the different rootstocks. However, their expression levels in response to salinity were noticeably higher in plants grafted on P1103 and R110 compared to 41B. The expression of CAT gene showed obvious enhanced level in plants grafted on P1103 in response to salt exposure. Meanwhile, the expres- sion of CAT gene in ‘Superior Seedless’ scion grafted on 41B or R110 showed almost unchanged level in control and stressed conditions. Down-regulation of CuZn-SOD was recorded in leaves of ‘Superior Seedless’ grafted on P1103. Slight up-regulation of this gene in response to saline condition was recorded when scion was grafted on 41B or R110. The expression of GPX was enhanced in scion grafted on P1103 and 41B. On the other hand, scion grafted on R110 showed decreased expression of GPX in response to salt treatment. Grapevine root- stocks that have V. rupestris and V. berlandieri in their parentage are good can- didates for salinity tolerance.
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Claims 9
Claim · model-written summary
After two weeks of salinity exposure, APX, Mn-SOD and MDAR transcript levels increased in Superior Seedless leaves on the different rootstocks.
- Material
- Superior Seedlesse0
- Organ / stage
- leavese0
- Treatment
- salinity exposure for two weekse0
- Gene
- APX, Mn-SOD and MDARe0
- Outcome
- transcript levels of APX, Mn-SOD and MDARe0
- Direction
- increasede0
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e0“Results revealed that after salinity exposure for two weeks, the transcript levels of APX, Mn-SOD and MDAR increased in ‘Superior Seedless’ leaves grafted on the different rootstocks”
Claim · model-written summary
Salinity-induced expression of APX, Mn-SOD and MDAR was noticeably higher in plants grafted on P1103 and R110 than on 41B.
- Material
- P1103 and R110e1
- Treatment
- in response to salinitye1
- Gene
- APX, Mn-SOD and MDARe0
- Outcome
- expression levelse1
- Direction
- highere1
- Comparator
- 41Be1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e0“the transcript levels of APX, Mn-SOD and MDAR increased”
e1“their expression levels in response to salinity were noticeably higher in plants grafted on P1103 and R110 compared to 41B”
Claim · model-written summary
Salt exposure enhanced CAT gene expression in plants grafted on P1103.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e2“The expression of CAT gene showed obvious enhanced level in plants grafted on P1103 in response to salt exposure”
Claim · model-written summary
CAT expression in scions grafted on 41B or R110 was almost unchanged between control and stressed conditions.
- Material
- 41B or R110e3
- Treatment
- stressed conditionse3
- Gene
- CATe3
- Outcome
- CAT genee3
- Direction
- almost unchanged levele3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e3“sion of CAT gene in ‘Superior Seedless’ scion grafted on 41B or R110 showed almost unchanged level in control and stressed conditions”
Claim · model-written summary
CuZn-SOD expression was down-regulated in Superior Seedless leaves grafted on P1103.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e4“Down-regulation of CuZn-SOD was recorded in leaves of ‘Superior Seedless’ grafted on P1103”
Claim · model-written summary
Under saline conditions, CuZn-SOD was slightly up-regulated in scions grafted on 41B or R110.
- Material
- 41B or R110e5
- Treatment
- saline conditione5
- Gene
- CuZn-SODe4
- Outcome
- up-regulation of this genee5
- Direction
- Slight up-regulatione5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e4“Down-regulation of CuZn-SOD was recorded in leaves of ‘Superior Seedless’ grafted on P1103”
e5“Slight up-regulation of this gene in response to saline condition was recorded when scion was grafted on 41B or R110”
Claim · model-written summary
GPX expression was enhanced in scions grafted on P1103 and 41B.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e6“The expression of GPX was enhanced in scion grafted on P1103 and 41B”
Claim · model-written summary
Salt treatment decreased GPX expression in scions grafted on R110.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e7“scion grafted on R110 showed decreased expression of GPX in response to salt treatment”
Claim · model-written summary
Rootstocks with V. rupestris and V. berlandieri in their parentage are good candidates for salinity tolerance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“‘Superior Seedless’ grapevine grafted on three rootstocks”
e7“that have V. rupestris and V. berlandieri in their parentage are good can- didates for salinity tolerance”