Abstract
Salicylic acid (SA) is an important plant hormone involved in the activation of defense responses against environmental stresses. However, there are still large of unsolved mysteries about how SA pretreatment affects the establishment of plant stress tolerance. In this study, application of SA at different concentrations and different times were conducted to investigate their effects on the response of Arabidopsis seedlings to salt stress. The pretreatment with 10 or 20 μM SA for more than 6 h promoted Arabidopsis seedlings resistance to salt stress. On the other hand, pretreatment with 200 μM SA reduced Arabidopsis resistance to salt stress and aggravated oxidative damage to the seedlings. At all concentrations used, SA pretreatment inhibited the total respiration and promoted reactive oxygen species (ROS) generation. However, the ROS content in 10 or 20 μM SA pretreated seedlings decreased to the basal level within 6 h and high activities of antioxidant enzymes and alternative oxidase were maintained. Notably, the SA-enhanced salt stress resistance was significantly impaired by blocking alternative oxidase (AOX) pathway. Our findings indicate that SA-mediated salt stress response is in a dose- and time-dependent manner and that the effects were related to the induction of AOX capacity and antioxidant system.
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Claims 10
Claim · model-written summary
Pretreatment with 10 or 20 μM SA for more than 6 h promoted resistance of Arabidopsis seedlings to salt stress.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- pretreatment with 10 or 20 μM SA for more than 6 he1
- Outcome
- resistance to salt stresse1
- Direction
- promotede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e1“The pretreatment with 10 or 20 μM SA for more than 6 h promoted Arabidopsis seedlings resistance to salt stress”
Claim · model-written summary
Pretreatment with 200 μM SA reduced resistance of Arabidopsis to salt stress.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- pretreatment with 200 μM SAe2
- Outcome
- resistance to salt stresse2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e2“pretreatment with 200 μM SA reduced Arabidopsis resistance to salt stress and aggravated oxidative damage to the seedlings”
Claim · model-written summary
Pretreatment with 200 μM SA aggravated oxidative damage to the seedlings.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- pretreatment with 200 μM SAe2
- Outcome
- oxidative damagee2
- Direction
- aggravatede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e2“pretreatment with 200 μM SA reduced Arabidopsis resistance to salt stress and aggravated oxidative damage to the seedlings”
Claim · model-written summary
SA pretreatment inhibited total respiration of Arabidopsis seedlings.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- SA pretreatmente3
- Outcome
- total respiratione3
- Direction
- inhibitede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e3“SA pretreatment inhibited the total respiration and promoted reactive oxygen species (ROS) generation”
Claim · model-written summary
SA pretreatment promoted reactive oxygen species generation in Arabidopsis seedlings.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- SA pretreatmente3
- Outcome
- reactive oxygen species (ROS) generatione3
- Direction
- promotede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e3“SA pretreatment inhibited the total respiration and promoted reactive oxygen species (ROS) generation”
Claim · model-written summary
The ROS content in 10 or 20 μM SA pretreated seedlings decreased to the basal level within 6 h.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- 10 or 20 μM SA pretreatede4
- Outcome
- ROS contente4
- Direction
- decreasede4
- Comparator
- basal levele4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e4“the ROS content in 10 or 20 μM SA pretreated seedlings decreased to the basal level within 6 h and high activities of antioxidant enzymes and alternative oxidase were maintained”
Claim · model-written summary
High activities of antioxidant enzymes and alternative oxidase were maintained in 10 or 20 μM SA pretreated seedlings.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- 10 or 20 μM SA pretreatede4
- Outcome
- activities of antioxidant enzymes and alternative oxidasee4
- Direction
- maintainede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e4“the ROS content in 10 or 20 μM SA pretreated seedlings decreased to the basal level within 6 h and high activities of antioxidant enzymes and alternative oxidase were maintained”
Claim · model-written summary
Blocking the alternative oxidase pathway significantly impaired SA-enhanced salt stress resistance.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- blocking alternative oxidase (AOX) pathwaye5
- Gene
- alternative oxidase (AOX)e5
- Outcome
- salt stress resistancee5
- Direction
- impairede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e5“the SA-enhanced salt stress resistance was significantly impaired by blocking alternative oxidase (AOX) pathway”
Claim · model-written summary
SA-mediated salt stress response is dose- and time-dependent.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Outcome
- SA-mediated salt stress responsee6
- Qualifier
- dose- and time-dependent mannere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e6“SA-mediated salt stress response is in a dose- and time-dependent manner”
Claim · model-written summary
The effects of SA pretreatment on salt stress tolerance were related to induction of AOX capacity and the antioxidant system.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Outcome
- effectse7
- Qualifier
- induction of AOX capacity and antioxidant systeme7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The enhancement of salt stress tolerance by salicylic acid pretreatment in Arabidopsis thaliana”
e7“the effects were related to the induction of AOX capacity and antioxidant system”
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See all 16 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.