Abstract
【Objective】 In order to explain the mechanism on the roles of salicylic acid in plant physiology and development,tissue culture plants of strawberry were used to explore the possible interactions between SA and iron. 【Method】 SA at a series of concentrations (0.05-0.8 mmol·L-1 ) was applied to the medium with a series of concentrations (0.05-0.8 mmol·L-1 ) of iron. Plant growth and the activities of some iron enzymes were measured. 【Result】 The plants were shown to be more sensitive to SA in the medium with lower concentrations of iron than higher ones. The optimal concentrations of SA for plant growth increased gradually along with the increase of iron concentrations in the medium. SA usually inhibited root elongation. Low concentrations of SA increased the plant height and chlorophyll content while high concentrations of SA reduced these indices. Higher concentration of SA at 0.4 mmol·L-1 injured the plants,but such injury became less with the increase of the concentration of iron. The activities of CAT and ACO were enhanced by SA at the concentrations of 0.05-0.2 mmol·L-1 while reduced at 0.4 mmol·L-1. POD activity was increased by SA at 0.05-0.4 mmol·L-1. 【Conclusion】 SA and iron have close relationship in regulating the growth of strawberry.
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Claims 10
Claim · model-written summary
Strawberry plants were more sensitive to SA at lower iron concentrations.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- SAe0
- Compound
- irone0
- Outcome
- sensitive to SAe0
- Direction
- more sensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The plants were shown to be more sensitive to SA in the medium with lower concentrations of iron than higher ones.”
t0“strawberry”
Claim · model-written summary
Optimal SA concentration for strawberry growth increased as medium iron increased.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SAe0
- Compound
- irone0
- Outcome
- optimal concentrations of SA for plant growthe0
- Direction
- increased graduallye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal concentrations of SA for plant growth increased gradually along with the increase of iron concentrations in the medium.”
t0“strawberry”
Claim · model-written summary
SA usually inhibited strawberry root elongation.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SAe0
- Outcome
- root elongatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA usually inhibited root elongation.”
t0“strawberry”
Claim · model-written summary
Low SA increased strawberry plant height and chlorophyll content.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Low concentrations of SAe0
- Outcome
- plant height and chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low concentrations of SA increased the plant height and chlorophyll content”
t0“strawberry”
Claim · model-written summary
High SA reduced strawberry plant height and chlorophyll content.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- high concentrations of SAe0
- Outcome
- plant height and chlorophyll contente1
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high concentrations of SA reduced these indices”
e1“plant height and chlorophyll content”
t0“strawberry”
Claim · model-written summary
SA at 0.4 mmol·L-1 injured strawberry plants.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SA at 0.4 mmol·L-1e0
- Outcome
- injured the plantse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentration of SA at 0.4 mmol·L-1 injured the plants”
t0“strawberry”
Claim · model-written summary
More iron lessened injury from high SA.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- irone0
- Outcome
- injurye0
- Direction
- lesse0
- Qualifier
- SA at 0.4 mmol·L-1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“such injury became less with the increase of the concentration of iron”
e1“Higher concentration of SA at 0.4 mmol·L-1 injured the plants”
t0“strawberry”
Claim · model-written summary
SA at 0.05-0.2 mmol·L-1 enhanced CAT and ACO activity.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SA at the concentrations of 0.05-0.2 mmol·L-1e0
- Gene
- CAT and ACOe0
- Outcome
- activities of CAT and ACOe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of CAT and ACO were enhanced by SA at the concentrations of 0.05-0.2 mmol·L-1”
t0“strawberry”
Claim · model-written summary
SA at 0.4 mmol·L-1 reduced CAT and ACO activity.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SAe0
- Outcome
- activities of CAT and ACOe0
- Direction
- reducede0
- Qualifier
- 0.4 mmol·L-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of CAT and ACO were enhanced by SA at the concentrations of 0.05-0.2 mmol·L-1 while reduced at 0.4 mmol·L-1.”
t0“strawberry”
Claim · model-written summary
SA at 0.05-0.4 mmol·L-1 increased POD activity.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- SA at 0.05-0.4 mmol·L-1e0
- Gene
- PODe0
- Outcome
- POD activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“POD activity was increased by SA at 0.05-0.4 mmol·L-1”
t0“strawberry”
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