Abstract
Ameliorative effects of exogenously applied salicylic acid ( SA) on salt‐induced oxidative damage in gerbera ( Gerbera j amesonii L .�Amaretto�) at reproductive stage were investigated . At the onset of flower initiation , plants pretreated with the foliar spraying of 0 , 0畅5 and 1畅0 mmol 爛 L 1 SA were irrigated with 100 mmol爛 L 1 NaCl ( three days after the SA pretreatment) and continued for two weeks . Control plants did not receive either NaCl or SA . As a response to salt stress , superoxide dismutase ( SOD) and peroxidase ( POD) activities , malondialdehyde (MDA) content , electrolyte leakage as well as the proline accumulation were increased . Nevertheless , SA pretreatment significantly reduced MDA content and electrolyte leakage . SOD and POD activities were significantly higher ( 1畅4‐fold and 2畅4‐fold , respectively ) in 0畅5 mmol 爛 L 1 SA‐pretreated salt‐stressed plants compared to SA‐unpretreated salt‐ stressed plants . These results indicate that exogenous SA involves , at least in part , in inducing antioxidative defense system in salt‐stressed gerbera . In general , of the two concentrations tested , 0畅5 mmol爛 L 1 SA concentration seemed to have greater effect throughout the experiment . Responses of salt‐ stressed plants pretreated with SA and significant correlation among them , predict its future potential as a pragmatic approach to improve salt tolerance in horticultural crops .
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Claims 8
Claim · model-written summary
Salt stress increased SOD and POD activities in gerbera.
- Treatment
- salt stresse0
- Outcome
- superoxide dismutase ( SOD) and peroxidase ( POD) activitiese0
- Direction
- increasede0
GerberaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a response to salt stress , superoxide dismutase ( SOD) and peroxidase ( POD) activities , malondialdehyde (MDA) content , electrolyte leakage as well as the proline accumulation were increased”
t0“gerbera”
Claim · model-written summary
Salt stress increased MDA content, electrolyte leakage and proline accumulation in gerbera.
- Treatment
- salt stresse0
- Outcome
- malondialdehyde (MDA) content , electrolyte leakage as well as the proline accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As a response to salt stress , superoxide dismutase ( SOD) and peroxidase ( POD) activities , malondialdehyde (MDA) content , electrolyte leakage as well as the proline accumulation were increased”
t0“gerbera”
Claim · model-written summary
SA pretreatment significantly reduced gerbera MDA content and electrolyte leakage.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA pretreatment significantly reduced MDA content and electrolyte leakage”
t0“gerbera”
Claim · model-written summary
SA pretreatment at 0畅5 mmol 爛 L 1 increased SOD activity 1畅4-fold in salt-stressed gerbera relative to untreated salt-stressed plants.
- Treatment
- 0畅5 mmol 爛 L 1 SAe0
- Outcome
- SODe0
- Direction
- highere0
- Value
- 1畅4‐folde0
- Qualifier
- salt‐stressed plantse0
- Comparator
- SA‐unpretreated salt‐ stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SOD and POD activities were significantly higher ( 1畅4‐fold and 2畅4‐fold , respectively ) in 0畅5 mmol 爛 L 1 SA‐pretreated salt‐stressed plants compared to SA‐unpretreated salt‐ stressed plants”
t0“gerbera”
Claim · model-written summary
SA pretreatment at 0畅5 mmol 爛 L 1 increased POD activity 2畅4-fold in salt-stressed gerbera relative to untreated salt-stressed plants.
- Treatment
- 0畅5 mmol 爛 L 1 SAe0
- Outcome
- POD activitiese0
- Direction
- highere0
- Value
- 2畅4‐folde0
- Qualifier
- salt‐stressed plantse0
- Comparator
- SA‐unpretreated salt‐ stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SOD and POD activities were significantly higher ( 1畅4‐fold and 2畅4‐fold , respectively ) in 0畅5 mmol 爛 L 1 SA‐pretreated salt‐stressed plants compared to SA‐unpretreated salt‐ stressed plants”
t0“gerbera”
Claim · model-written summary
The authors infer that exogenous SA partly induces antioxidative defense in salt-stressed gerbera.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous SA involves , at least in part , in inducing antioxidative defense system in salt‐stressed gerbera”
Claim · model-written summary
Of the two SA concentrations tested, 0畅5 mmol爛 L 1 seemed more effective throughout the experiment.
- Treatment
- 0畅5 mmol爛 L 1 SAe0
- Outcome
- greater effecte0
- Direction
- greater effecte0
- Qualifier
- seemede0
- Comparator
- two concentrations testede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“of the two concentrations tested , 0畅5 mmol爛 L 1 SA concentration seemed to have greater effect throughout the experiment”
t0“gerbera”
Claim · model-written summary
The authors propose SA pretreatment as a potential approach to improve salt tolerance in horticultural crops.
Verbatim
e0“Responses of salt‐ stressed plants pretreated with SA and significant correlation among them , predict its future potential as a pragmatic approach to improve salt tolerance in horticultural crops”
The same questions in other papers
salicylic acid · physiology: oxidative · GerberaResults agree
2 papers in the same direction as this paper
- positive
- positive
salinity · physiology: oxidative · GerberaResults agree
2 papers in the same direction as this paper
- negative
- negative
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.