Abstract
Salinity stress is one of the most damaging abiotic stresses to plants, causing disturbances in physiological, biochemical, and metabolic processes. The exogenous application of natural metabolites is a useful strategy to reduce the adverse effects of stress on crops. We investigated the effect of foliar application of salicylic acid (SA) and ferulic acid (FA) (10-100 μM) on short-term salt-stressed (150 mM NaCl, 72 h) Chinese cabbage plants. Subsequently, proline level, photosynthetic performance, phenolic metabolites with special focus on selected phenolic acids (sinapic acid (SiA), FA, SA), flavonoids (quercetin (QUE), kaempferol (KAE)), and antioxidant activity were investigated in salt-stressed and phenolic acid-treated plants compared with the corresponding controls. Salt stress caused a significant increase in SA and proline contents, a decrease in phenolic compounds, antioxidant activity, and photosynthetic performance, especially due to the impairment of PSI function. SA and FA treatments, with a concentration of 10 μM, had attenuated effects on salt-stressed plants, causing a decrease in proline and SA level, and indicating that the plants suffered less metabolic disturbance. Polyphenolic compounds, especially FA, SiA, KAE, and QUE, were increased in FA and SA treatments in salt-stressed plants. Consequently, antioxidant activities were increased, and photosynthetic performances were improved. FA resulted in a better ameliorative effect on salt stress compared to SA.
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Claims 6
Claim · model-written summary
Salt stress caused a significant increase in salicylic acid and proline contents in Chinese cabbage.
- Taxon
- Chinese Cabbage
Brassica rapa subsp. pekinensist0 - Treatment
- Salt stresse0
- Outcome
- SA and proline contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e0“Salt stress caused a significant increase in SA and proline contents”
Claim · model-written summary
Salt stress decreased phenolic compounds, antioxidant activity and photosynthetic performance in Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- Salt stresse1
- Outcome
- phenolic compounds, antioxidant activity, and photosynthetic performancee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e1“Salt stress caused”
e0“a decrease in phenolic compounds, antioxidant activity, and photosynthetic performance”
Claim · model-written summary
Foliar SA and FA at 10 μM attenuated the effects of salt stress, decreasing proline and SA levels in Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- SA and FA treatments, with a concentration of 10 μMe0
- Outcome
- proline and SA levele0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e0“SA and FA treatments, with a concentration of 10 μM, had attenuated effects on salt-stressed plants, causing a decrease in proline and SA level”
Claim · model-written summary
Polyphenolic compounds, especially FA, SiA, KAE and QUE, increased with FA and SA treatments in salt-stressed Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- FA and SA treatmentse0
- Outcome
- Polyphenolic compoundse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e0“Polyphenolic compounds, especially FA, SiA, KAE, and QUE, were increased in FA and SA treatments in salt-stressed plants”
Claim · model-written summary
Antioxidant activities increased and photosynthetic performances improved with FA and SA treatments in salt-stressed Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- FA and SA treatmentse1
- Outcome
- antioxidant activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e0“antioxidant activities were increased, and photosynthetic performances were improved”
e1“were increased in FA and SA treatments in salt-stressed plants”
Claim · model-written summary
FA had a better ameliorative effect on salt stress than SA in Chinese cabbage.
- Taxon
- Chinese CabbageBrassica rapa subsp. pekinensist0
- Treatment
- FAe0
- Outcome
- ameliorative effect on salt stresse0
- Direction
- bettere0
- Comparator
- SAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chinese Cabbage”
e0“FA resulted in a better ameliorative effect on salt stress compared to SA”
The same questions in other papers
salicylic acid · molecular: metabolites · Brassica rapa (field mustard)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
salicylic acid · physiology: osmolytes · Brassica rapa (field mustard)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
salinity · physiology: photosynthesis · Brassica rapa (field mustard)Results differ
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- negative
2 papers more in this group
See all 6 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.