Abstract
To understand the protective roles of salicylic acid (SA) under high light, we investigated oxidative damage of Arabidopsis thaliana under high light in the presence or absence of SA. The results indicate that the high light led to an increase in the levels of proline, soluble sugars, reactive oxygen species, malondialdehyde, and electrolyte leakage, and a decrease in stomatal conductance (gs). Activities of six antioxidant enzymes increased significantly under the high light for 1 h. However, the high light for 3 h decreased the activities of peroxidase, superoxide dismutase, and catalase. In addition, we found that exogenous SA effectively improved antioxidant enzyme activities and significantly alleviated ROS accumulation and cell death in A. thaliana under the high light. Therefore, our results show that the high light caused a severe oxidative damage, and SA effectively alleviated the adverse effects of the high light on the plants by regulating the antioxidative defense system.
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Claims 6
Claim · model-written summary
High light increased proline, soluble sugars, reactive oxygen species, malondialdehyde, and electrolyte leakage.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Treatment
- high lighte0
- Outcome
- levels of proline, soluble sugars, reactive oxygen species, malondialdehyde, and electrolyte leakagee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high light led to an increase in the levels of proline, soluble sugars, reactive oxygen species, malondialdehyde, and electrolyte leakage”
e1“Arabidopsis thaliana”
Claim · model-written summary
High light decreased stomatal conductance.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae2
- Treatment
- high lighte1
- Outcome
- stomatal conductance (gs)e0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in stomatal conductance (gs)”
e1“high light led to an increase”
e2“Arabidopsis thaliana”
Claim · model-written summary
After one hour of high light, six antioxidant enzyme activities increased significantly.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Treatment
- high lighte0
- Outcome
- Activities of six antioxidant enzymese0
- Direction
- increasede0
- Qualifier
- 1 he0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Activities of six antioxidant enzymes increased significantly under the high light for 1 h”
e1“Arabidopsis thaliana”
Claim · model-written summary
After three hours of high light, peroxidase, superoxide dismutase and catalase activities decreased.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Treatment
- high light for 3 he0
- Outcome
- activities of peroxidase, superoxide dismutase, and catalasee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high light for 3 h decreased the activities of peroxidase, superoxide dismutase, and catalase”
e1“Arabidopsis thaliana”
Claim · model-written summary
Exogenous salicylic acid improved antioxidant enzyme activities under high light.
- Taxon
- A. thalianaArabidopsis thalianae1
- Treatment
- exogenous SAe0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- improvede0
- Qualifier
- under the high lighte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous SA effectively improved antioxidant enzyme activities”
e1“A. thaliana under the high light”
e2“salicylic acid (SA)”
Claim · model-written summary
Exogenous salicylic acid significantly alleviated ROS accumulation and cell death under high light.
- Taxon
- A. thalianaArabidopsis thalianae0
- Treatment
- exogenous SAe1
- Outcome
- ROS accumulation and cell deathe0
- Direction
- alleviatede0
- Qualifier
- under the high lighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly alleviated ROS accumulation and cell death in A. thaliana under the high light”
e1“exogenous SA”
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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.