Abstract
Salicylic acid (SA) is a promising compound to increase plant tolerance to drought stress, and it can affect many aspects of physiological and biochemical processes. This study was focused on the changes in proteins, photosynthesis, and antioxidant system of Sardari wheat ecotypes leave in response to the application of SA under drought stress conditions. Treatments included Sardari wheat ecotypes (Baharband, Kalati, Fetrezamin, Gavdareh, Telvar, and Tazehabad), salicylic acid at 0.5 mM (controls were untreated), and drought stress (30% of the field capacity). The results showed that membrane electrolyte leakage, and lipid peroxidation of all six ecotypes, were obviously increased under drought stress conditions. On the other hand, drought stress decreased leaf chlorophyll content, photosynthetic rate, stomatal conductance, carboxylation efficiency, and transpiration rate. The results of SDS-PAGE indicated that the abundance of some protein spots was downregulated when the plants were exposed to drought stress, while other protein spots' abundance was upregulated in such a situation. Under stress conditions, the highest antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bands were observed in Baharband and Telvar, while the lowest was related to Fetrezamin. Salicylic acid treatments effectively ameliorated the negative effects of drought stress on Sardari ecotypes through improving the photosynthetic performance, keeping membrane permeability, induction of stress proteins, and enhancing the activity of antioxidant enzymes. The above findings suggest that ecotype ability to maintain photosynthetic performance was important to cope with drought stress.
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Claims 12
Claim · model-written summary
Drought increased membrane electrolyte leakage and lipid peroxidation across six wheat ecotypes.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- drought stress conditionse0
- Outcome
- membrane electrolyte leakage, and lipid peroxidatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that membrane electrolyte leakage, and lipid peroxidation of all six ecotypes, were obviously increased under drought stress conditions.”
t0“winter wheat”
Claim · model-written summary
Drought decreased leaf chlorophyll content, photosynthetic rate, stomatal conductance.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- leaf chlorophyll content, photosynthetic rate, stomatal conductancee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand, drought stress decreased leaf chlorophyll content, photosynthetic rate, stomatal conductance, carboxylation efficiency, and transpiration rate.”
t0“winter wheat”
Claim · model-written summary
Drought decreased carboxylation efficiency, and transpiration rate.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- carboxylation efficiency, and transpiration ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand, drought stress decreased leaf chlorophyll content, photosynthetic rate, stomatal conductance, carboxylation efficiency, and transpiration rate.”
t0“winter wheat”
Claim · model-written summary
Some protein spots declined under drought.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- abundance of some protein spotse0
- Direction
- downregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of SDS-PAGE indicated that the abundance of some protein spots was downregulated when the plants were exposed to drought stress, while other protein spots' abundance was upregulated in such a situation.”
t0“winter wheat”
Claim · model-written summary
Other protein spots increased under drought.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- other protein spots' abundancee0
- Direction
- upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of SDS-PAGE indicated that the abundance of some protein spots was downregulated when the plants were exposed to drought stress, while other protein spots' abundance was upregulated in such a situation.”
t0“winter wheat”
Claim · model-written summary
Baharband had the highest antioxidant activity, photosynthetic performance, membrane stability and protein band counts under stress.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- Baharbande0
- Outcome
- antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bandse0
- Direction
- higheste0
- Qualifier
- stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress conditions, the highest antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bands were observed in Baharband and Telvar, while the lowest was related to Fetrezamin.”
t0“winter wheat”
Claim · model-written summary
Telvar had the highest antioxidant activity, photosynthetic performance, membrane stability and protein band counts under stress.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- Telvare0
- Outcome
- antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bandse0
- Direction
- higheste0
- Qualifier
- stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress conditions, the highest antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bands were observed in Baharband and Telvar, while the lowest was related to Fetrezamin.”
t0“winter wheat”
Claim · model-written summary
Fetrezamin had the lowest antioxidant activity, photosynthetic performance, membrane stability and protein band counts under stress.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- Fetrezamine0
- Outcome
- antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bandse0
- Direction
- loweste0
- Qualifier
- stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress conditions, the highest antioxidant enzymatic activity, photosynthetic performance, cell membrane stability, and numbers of protein bands were observed in Baharband and Telvar, while the lowest was related to Fetrezamin.”
t0“winter wheat”
Claim · model-written summary
Salicylic acid under drought improving photosynthetic performance.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Salicylic acid treatmentse0
- Outcome
- photosynthetic performancee0
- Direction
- improvinge0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid treatments effectively ameliorated the negative effects of drought stress on Sardari ecotypes through improving the photosynthetic performance, keeping membrane permeability, induction of stress proteins, and enhancing the activity of antioxidant enzymes.”
t0“winter wheat”
Claim · model-written summary
Salicylic acid under drought keeping membrane permeability.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Salicylic acid treatmentse0
- Outcome
- membrane permeabilitye0
- Direction
- keepinge0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid treatments effectively ameliorated the negative effects of drought stress on Sardari ecotypes through improving the photosynthetic performance, keeping membrane permeability, induction of stress proteins, and enhancing the activity of antioxidant enzymes.”
t0“winter wheat”
Claim · model-written summary
Salicylic acid under drought induction stress proteins.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Salicylic acid treatmentse0
- Outcome
- stress proteinse0
- Direction
- inductione0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid treatments effectively ameliorated the negative effects of drought stress on Sardari ecotypes through improving the photosynthetic performance, keeping membrane permeability, induction of stress proteins, and enhancing the activity of antioxidant enzymes.”
t0“winter wheat”
Claim · model-written summary
Salicylic acid under drought enhancing activity of antioxidant enzymes.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Salicylic acid treatmentse0
- Outcome
- activity of antioxidant enzymese0
- Direction
- enhancinge0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid treatments effectively ameliorated the negative effects of drought stress on Sardari ecotypes through improving the photosynthetic performance, keeping membrane permeability, induction of stress proteins, and enhancing the activity of antioxidant enzymes.”
t0“winter wheat”
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