Abstract
The influence of SA on defense enzymes (PAL, POD, PPO and LOX) activities was studied in Arabidopsis thaliana seedlings. The result showed that the activities of PAL, POD, PPO and LOX in the leaf were increased rapidly after treatment of Arabidopsis seedlings with 10 μg/mL SA. The time to reach the highest level of PAL activity was at 12 h after SA treatment, and higher level of PAL activity could maintain from 12 h to 48 h . POD, PPO and LOX activity could reach their peaks at 48 h after SA treatment, and higher level of POD and PPO activities could maintain within 24 - 96 h, The change of these physiology indexes was consistent with SA induced plant disease resistance.
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Claims 5
Claim · model-written summary
SA rapidly increased PAL, POD, PPO and LOX activity in leaves.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Organ / stage
- leafe0
- Treatment
- 10 μg/mL SAe0
- Outcome
- activities of PAL, POD, PPO and LOXe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“activities of PAL, POD, PPO and LOX in the leaf were increased rapidly after treatment of Arabidopsis seedlings with 10 μg/mL SA”
e1“Arabidopsis thaliana seedlings”
Claim · model-written summary
PAL activity peaked at 12 h and stayed high from 12 to 48 h after SA treatment.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Treatment
- SA treatmente0
- Gene
- PALe0
- Outcome
- highest level of PAL activitye0
- Direction
- higheste0
- Value
- 12 he0
- Qualifier
- from 12 h to 48 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The time to reach the highest level of PAL activity was at 12 h after SA treatment, and higher level of PAL activity could maintain from 12 h to 48 h”
e1“Arabidopsis thaliana seedlings”
Claim · model-written summary
POD, PPO and LOX activities peaked at 48 h after SA treatment.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Treatment
- SA treatmente0
- Outcome
- POD, PPO and LOX activitye0
- Direction
- peakse0
- Value
- 48 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“POD, PPO and LOX activity could reach their peaks at 48 h after SA treatment”
e1“Arabidopsis thaliana seedlings”
Claim · model-written summary
POD and PPO activities remained high from 24 to 96 h.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Outcome
- POD and PPO activitiese0
- Direction
- highere0
- Value
- 24 - 96 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“higher level of POD and PPO activities could maintain within 24 - 96 h”
e1“Arabidopsis thaliana seedlings”
Claim · model-written summary
The authors report that enzyme changes were consistent with SA-induced disease resistance.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Treatment
- SAe0
- Outcome
- change of these physiology indexese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The change of these physiology indexes was consistent with SA induced plant disease resistance”
e1“Arabidopsis thaliana seedlings”
The same questions in other papers
salicylic acid · physiology: antioxidant enzymes · Arabidopsis thaliana (thale cress)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- 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.