Abstract
Summary. The effects of salicylic acid (SA) and cold on photosynthesis, activities of carboxylating enzymes ribulose-1,5bisphosphate carboxylase (RuBPC) and phosphoenolpyruvate carboxylase (PEPC) and activities of photorespiratory enzymes glycolate oxidase (GO) and catalase (CAT), and on the activies of antioxidant enzymes superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR) and peroxidase (POX) were investigated in winter wheat (Triticum aestivum, cv. Dogu-88) leaves. Exposure of wheat plants to a low temperature (3 o C) for 48 h and 72 h resulted in decreased levels of chlorophyll, CO 2 assimilation and transpiration rates and increased activity of GO and CAT. Treatment with SA alone for 24 h resulted in a lower rate of photosynthesis, decreased transpiration and stomatal conductance accompanied with enhanced rate of lipid peroxidation and peroxides level. Treatment with 500 µmol/L SA for 24 h before exposure to chilling provided protection on RuBPC activity and chlorophyll content. The activities of GO, CAT, POX, and APX additionally increased in SA-treated plants. The impact of SA and cold on photorespiratory and antioxidative _____________ *Corresponding author,
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Claims 8
Claim · model-written summary
Exposure of wheat plants to 3 degrees C for 48 h and 72 h decreased chlorophyll level, CO2 assimilation and transpiration rates.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- low temperature (3 o C) for 48 h and 72 he0
- Outcome
- chlorophyll, CO 2 assimilation and transpiration ratese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure of wheat plants to a low temperature (3 o C) for 48 h and 72 h resulted in decreased levels of chlorophyll, CO 2 assimilation and transpiration rates”
t0“WHEAT PLANTS”
Claim · model-written summary
Exposure of wheat plants to 3 degrees C for 48 h and 72 h increased the activity of GO and CAT.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- low temperature (3 o C) for 48 h and 72 he0
- Outcome
- activity of GO and CATe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure of wheat plants to a low temperature (3 o C) for 48 h and 72 h resulted in decreased levels of chlorophyll, CO 2 assimilation and transpiration rates and increased activity of GO and CAT”
t0“WHEAT PLANTS”
Claim · model-written summary
Treatment with SA alone for 24 h lowered the rate of photosynthesis in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SA alone for 24 he0
- Outcome
- rate of photosynthesise0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with SA alone for 24 h resulted in a lower rate of photosynthesis, decreased transpiration and stomatal conductance”
t0“WHEAT PLANTS”
Claim · model-written summary
Treatment with SA alone for 24 h decreased transpiration and stomatal conductance in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SA alone for 24 he0
- Outcome
- transpiration and stomatal conductancee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with SA alone for 24 h resulted in a lower rate of photosynthesis, decreased transpiration and stomatal conductance”
t0“WHEAT PLANTS”
Claim · model-written summary
Treatment with SA alone for 24 h enhanced the rate of lipid peroxidation and peroxides level in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SA alone for 24 he0
- Outcome
- lipid peroxidation and peroxides levele0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with SA alone for 24 h resulted in a lower rate of photosynthesis, decreased transpiration and stomatal conductance accompanied with enhanced rate of lipid peroxidation and peroxides level”
t0“WHEAT PLANTS”
Claim · model-written summary
Treatment with 500 umol/L SA for 24 h before chilling provided protection on RuBPC activity and chlorophyll content in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 500 µmol/L SA for 24 h before exposure to chillinge0
- Outcome
- RuBPC activity and chlorophyll contente0
- Direction
- provided protectione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with 500 µmol/L SA for 24 h before exposure to chilling provided protection on RuBPC activity and chlorophyll content”
t0“WHEAT PLANTS”
Claim · model-written summary
The activities of GO and CAT additionally increased in SA-treated wheat plants.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SA-treatede0
- Outcome
- activities of GO, CATe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of GO, CAT, POX, and APX additionally increased in SA-treated plants”
t0“WHEAT PLANTS”
Claim · model-written summary
The activities of POX and APX additionally increased in SA-treated wheat plants.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SA-treatede0
- Outcome
- POX, and APXe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of GO, CAT, POX, and APX additionally increased in SA-treated plants”
t0“WHEAT PLANTS”
The same questions in other papers
salicylic acid · physiology: pigments · Triticum aestivum (wheat)Positive and negative results
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- positive
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See all 30 papers →cold · physiology: pigments · Triticum aestivum (wheat)Results differ
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- negative
- negative
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See all 14 papers →cold · physiology: photosynthesis · Triticum aestivum (wheat)Results differ
15 papers in the same direction as this paper · 11 in the opposite direction
- negative
- positive
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See all 27 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.